Your rent will actually be calculated based on 600 square feet, not the 500 you will actually occupy. Divide this number by 144 to arrive at the area in square feet: 4 sq in/144 = 0. Directions: Enter inches into the calculator below. Using the scale and a calculator you can determine the square foot breakdown by room/space and also calculate the total floor plan square footage. – For centimeters (cm to feet):. The chart below has fixed square footage in the left column (highlighted in beige) and spacing distances across the top (highlighted in yellow). A lot of people still work in square yards. In mathematical expression, 1 Gajam = 9 Square Feet (sq ft). In decimal form 5 / 12 = 0. Thus, when you convert twips to inches or centimeters you will get an answer of 72 points per inch or 1440 twips per inch. How to multiply feet and inches. 3048 meters, so that's 12. A single, decimal figure offers convenience when calculating, but units of feet and inches are the norm. There are 12 inches in a foot, so there are 12 3 inches 3 (cubic inches) in a foot 3 (cubic foot). We also know that 1 foot is equal to 30. Calculate the area of your space. Convert 16 m2 into square feet. 50 square inch to feet squared = 0. Calculate the Area as Square Footage If you are measuring a square or rectangle area, multiply length times width; Length x Width = Area. 33 feet by 191664 square feet giving you 63249. The Online Converter. The carpet calculator will provide the total square feet and square yards required for the dimensions you provide. For instance, if one side was 12 feet 7 inches, that's 12 7/12 feet = 12. Answer (1 of 5): To convert feet and inches into square metres the first thing you need to do is turn the initial measurement into inches. First, the depth must be converted to feet. The Square Inches of Free Area of One of the 2 Pass-Thru Grilles box tells you these grilles need to each be 18x10 or larger. So 60 inches times 36 inches is 2160 square inches divide that by 16 square inches per tile to get 135 tiles. In order to figure square feet for a concrete project, you only need to. Inches, Cubic Feet, Quarts, Cubic Yards, Cubic Meters, Gallons, Liters, Cubic Centimeters, Cubic Millimeter etc. 1 foot is equivalent to 12 inches and 36 inches correspond to one yard. For the sake of easy examples, assume you're pouring a slab that's a simple rectangle of 20 by 30 feet, and you've figured out that you'll need the rebar set at 14 inches on center. Convert Square Inches to Square Feet Metric conversions between square inches and square feet. This is a worked example showing how to convert cubic inches to cubic feet, two common units of volume. Determining the square feet of a circular pool is the same as determining the area of a circle. Therefore, n centimeters are equal to (n * 0. 20833333 ft 2 Conversion Table For quick reference purposes, below is a conversion table that you can use to convert from in 2 to ft 2. It also helps to sketch out a diagram of your home’s layout. 10 square inch to feet squared = 0. Square Meters To Square Feet - Easy Square Meters To Square Feet Converter Welcome to the brand new, quick and easy Square Meters To Square Feet converter. 34375' And now let's convert it to 2 decimal points. Inches are widely used in the United States, United Kingdom and Canada. How many square inches are there in 1 square foot? There are 144 square inches in 1 square foot. 25 square feet. You know that one meter is equal to 100 centimeters. Feet and inches calculator that allows you to perform arithmetic operations of ft and in, i. Multiply by 144 to convert from square feet to square inches. It is a measurement derived from the area of a square with a side length measured in feet. Very useful when shopping for carpet, linoleum, or tile, which are typically sold by the square yard, and you have the dimensions of a room or area in square feet. I have =IF(G5>12,G5/144). What is Square Inch? Square inch is an imperial and United States Customary area unit and defined as a square with all sides are one inch in length. customary unit (non-SI, non-metric) of area, used mainly in the United States. The units are used in schools, daily life, art, and some areas of science and engineering. Start by multiplying each of those measurements by 12 to get your dimensions in inches, which in this case would be 240 inches by 360. I have a column of data with dimensions entered as y' x z' and need to convert them in the next column to square footage. 5" = 2,754 (Divide this number by 144). Break down the sketch into measurable rectangles. 1 acre 43,560 sq. 4+(1/8) = 4+0. Answer (1 of 5): To convert feet and inches into square metres the first thing you need to do is turn the initial measurement into inches. When you are considering siding for your home, calculating your exterior square footage is a very wise thing to do. Technical units conversion tool for surface area measures. Directions: Enter inches into the calculator below. feet 25' 6 1/8" Perfectly acceptable for most of your calculated needs but is it right?. Convert to decimal feet, then to meters. units and vice versa. Multiply this final number by 12 (the number of inches in a foot). Square Feet. Example: You have an area of 1,000 square feet and you want to cover it with four inches (0. Knowing that a foot equals 12 inches, you transform that into 1 times 12 in times 12 in times 12, which equals 1728 inches squared. 4 Square Inches in 0. Feet and Inches (No Input): Note: Fill in one box to get results in the other box by clicking "Calculate" button. A square measurement is the two-dimensional derivative of a linear measure, so a square foot is defined as the area of a square with sides 1 ft in length. CLICK HERE for KILOGRAM EXPLAINED. The price per rentable square foot includes a pro-rata calculation based on the size of your lease space. For example, a 3 inch layer of rock divided by 12 equals 0. Conversion Calculators. 07639E-05 square foot (sq ft). I need to know how to calculate volume in square feet. Since house siding is often measured in feet and inches (example: 10 feet and 6 inches) this calculator allows you to enter feet and inches, feet only, inches only or any combination of the two. For a triangle, the width of the base is multiplied by the height of a triangle. In one square foot, there are 144 square inches. 00694444444 square feet using the online calculator for metric conversions. The square foot (plural square feet; abbreviated ft2 or sq ft) is an imperial unit and U. Answer (1 of 5): To convert feet and inches into square metres the first thing you need to do is turn the initial measurement into inches. To convert square inches to square feet, multiply the square inch value by 0. Here are a few factors to. 00694444444 square feet using the online calculator for metric conversions. Cubic feet is a volumetric measure. This is a free online tool to calculate the volume of a cuboid or a box, support metric and imperial units (inches, feet, yards, mm, cm or meter), simple CFT calculator with calculation formula and dynamic visual cube help us understand the answer more easily. Square Feet. How many Square Inches in 6230 ft2. How to multiply feet and inches. Go through the house measure the length and width of each rectangle, then multiply the length by its width. ) You can also use this tool to convert feet to inches, convert inches to feet and calculate square inches. 51 Square Centimetres to Square Inches 0. The fraction in addition to being in an exact result is also converted into a usable fraction. → 0 sq 3 inches (recommended). History/origin: The origin of the square foot can be seen in the term itself. The second formula is more robust; it permits non-integer inches (e. For instance, if you plan to install trim around the entire perimeter of a window that is 48 inches long by 30 inches wide, you would add the linear foot equivalents of 4 and 21/2 to get a total of 61/2 linear feet. 15 Square Feet to Square Metres 0. 77 by the length. How to convert from Square Feet to Square Inches. 1416 times the radius (in feet) squared. A square yard is a US customary and an imperial area unit of measurement and is abbreviated as "yd2" or "sq. Plus, it converts to and from any dimensional format. Click on each corner in order and be sure to re-click the first corner you clicked on. The square foot (plural square feet; abbreviated ft2 or sq ft) is an imperial unit and U. Once you have square inches, divide by 144 to get square feet. Construction related calculator to solve problems with feet and inches calculations. Whether you're pouring a driveway or a pool deck, one of the first things you'll need to know is how much concrete you're going to need to complete the job. 092903 square-meters, while 1 Circular Inches (c in) = 0. To convert square inches to square feet, multiply the square inch value by 0. When painting a house, installing flooring, or building a home, the square footage of the property is often used to determine cost or materials to be used. 1 foot is equal to 12 inches:. This free volume calculator can compute the volumes of common shapes, including that of a sphere, cone, cube, cylinder, capsule, cap, conical frustum, ellipsoid, and square pyramid. com" and will instead come from "[email protected] Just keep in mind that square footage describes the entire coverage area; one square foot is a square, one foot long and one foot high. The word "linear" just means the measurement refers to a straight line. Conversion of square feet or square yards into square meters, metric area unit, surface areas, square meters, ares, hectares, squared area units, acres, etc. Calculator - Square Feet to Square Yards Calculator to convert square feet to square yards. Example: 51/2"X2'X58" (five and one-half inched by two feet by 58 inches)=? sq. CONVERT() as the name suggests is an Excel function that can convert values from one base to another, like feet to inches, square meters to square feet, centigrade to fahrenheit, grape juice to wine. 23' by 21' 5" is 23' by 21. Whether you're pouring a driveway or a pool deck, one of the first things you'll need to know is how much concrete you're going to need to complete the job. Enter the length and width. If your measuring tape is using inches, you can convert them right away in feet or vice versa. You will need to buy extra carpet to allow for cutting, seaming, pattern repeats, and the configuration of the room. acre x 8 1 ⎟⎟= Then if you knew how many inches deep you wanted the topsoil you figure out how much topsoil you would need (we’ll save that kind of volume. customary unit (non-SI, non-metric) of area, used mainly in the United States. It is defined as the area of 1 chain (66 feet) by 1 furlong (660 feet), which is exactly equal to 1/640 of a square mile, 43,560 square feet, or exactly 4046. Convert the inches to feet and inches by dividing by 12. 25 square feet. 12 cubic feet. Each side of the square is 12 inches long, and multiplying the lengths of the sides together produces an area of 144 square inches. How many square inches are in 168 square feet? How much? What is 168 square feet converted to square inches? Use the calculator above to convert between square feet and square inches. How to find the area of a square: The area of a square can be found by multiplying the base times itself. In those countries personal heights are usually expressed in inches and feet. Convert square feet to square kilometers. If your measuring tape is using inches, you can convert them right away in feet or vice versa. An answer like "5. You may enter only feet, only inches or a combination of both in either the width or length fields. Measuring the amount of carpet you need is done by identifying the square footage of the area. Use this stone calculator to help you determine how many square feet of material your project requires. Step 3 - Convert square inches into square feet by dividing the number of square inches by 144 (12" x 12"). Charts and calculators to convert weights, dimensions, liquids, time, calories, and more. For a triangle, the width of the base is multiplied by the height of a triangle. 0433 square feet. Do a quick conversion: 1 inches inches = 0. To measure a home's square footage, sketch a floor plan of the interior. How to get AutoCAD to display area values in square feet instead of squar inches Announcements On Thursday, October 31st, Forums notification emails will no longer be sent from "[email protected] Our easy square foot calculator helps you get the answer in no time. Do that with the other dimension, and then multiply to get square meters. It enables you to convert feet values to square inches. In decimal form 5 / 12 = 0. How to calculate square footage really isn't that difficult once you do it a couple times. If the surface is complex in shape, it may be possible to section the surface into simple shapes and add their square footages together. The results are the total of the feet and inches entered, converted into inches. We sell most of our lumber by the board foot. If you already know the square feet of your room, you just have to figure the height and multiply them together. It is a measurement derived from the area of a square with a side length measured in feet. This is a worked example showing how to convert cubic inches to cubic feet, two common units of volume. = ft2 = ft 2. 09290304 square meters (symbol: m2). It has a blank text field and a single control that executes an independent function of the calculator. 00694 Square Foot You may also use this area units conversion calculator tool to convert between square feet, square inches and all area measurement units. 200 square inch to feet squared = 1. Decimal Feet to Feet and Inches Calculator Convert a value in decimal feet to feet, inch and fraction format. 1 square foot is literally 1 foot squared (or 1 foot times 1 foot); this means it is also 12 inches times 12 inches, or 144 square inches. It also helps to sketch out a diagram of your home’s layout. A room that is 10-feet by 12-feet, for example, provides 120 square feet of living space. Cubic inches are the same concept, except in 3 dimensions. Step 1 - convert everything into feet. Degrees, Minutes, Seconds and Decimal Degrees Conversion Square Footage Calculator Cubic Footage Calculator Square Footage to Cubic Footage Conversion Construction Calculators: ===== Feet and Inches Calculator(add, subtract, multiply and divide) Metre,CM and MM Calculator(+,-,*,/) Feet,inches TO Metre,cm,mm Conversion Feet,inches and Metre,cm. To calculate how to convert square feet to inches you can multiply the number times. Convert Meters to Feet Manually. Measure the width and length of your area in feet. 1 meter = 3. The conversion factor from Square Feet to Square Inches is 144. To convert an area measured in square inches into square feet, divide the number of square inches by 144. So now 1 yard squared is 1 times 3 feet times 3 feet times 3 feet,. If JavaScript is not working on your browser, or in case you are simply curious, here is the procedure for calculating the diameter of a circle from its area. To measure a home's square footage, sketch a floor plan of the interior. Enter the number of units in cents and you get the result in square feet. allconversions. It has a blank text field and a single control that executes an independent function of the calculator. 4+(1/8) = 4+0. Inches to feet How to convert feet to inches. 61 Kilometres to Miles 0. An Example of Calculating Rentable Square Feet. This is a online length converter, convert meters to feet and inches, feet and inches to meters, include fraction and decimal inches, it also has the calculation formulas and a virtual dynamic ruler to show the corresponding of units, understand your question with the best visualization. I am not sure of the calculation and what to do with it being squared. To calculate the square inches of the surface area of a box the formula is 2*w*h + 2*l*h + 2*w*l. " One square yard is equivalent to1296 square inches, 0. Convert 6230 Square Feet to Square Inches (6230 ft2 to in2) with our Area converter. 91 Metres to Yards 1. 5 square ft) subtract for any areas not to be tiled by rounding down. Convert Area from Guntha to Square Feet or to different units such as Acre, Bigha, Gunta, Square Kilometer, Square Feet, Square Hectometer, Rood, Homestead, Kottah, Tatami(Japan), Aankadam, Biswa, Square Mile, Yard, Ping, Township and to more than 150 different Metric, English, Imperial and Indian Area measurement units. Convert Inches to Feet and Inches in this educational math matching game. Of course, it may be that the area you're measuring isn't rectangular. This gives you your square feet figure (ft2). For instance, a square board that is 12 inches long, 12 inches wide, and 1 inch thick is equal to 1 board foot. If you want to convert a cubic yard, you have to remember 1 yard equals 3 feet. Calculating the area in square feet is essential for any number of tasks in planning and design work, from working out materials costs and maintenance regimes to making licence applications and adhering to fire regulations. How many square feet there are in a inch. 5” = 2,754 (Divide this number by 144). * I took these from a long forgotten site, no offense to the author. 33 feet) of mulch. 71 square feet. We've included some conversion calculators to help you convert between different units of measurement Simply choose the appropriate calculator, clear the calculator of any previous values by clicking the Clear button, enter the desired value under the desired unit, and click the Calculate button. divide by 144 to convert from square inches to square feet. Square Feet to Square Inches (ft² to in²) conversion calculator for Area conversions with additional tables and formulas. * Shown as 0. If you mean convert cubic inches to cubic feet, there are 12*12*12. How to calculate square footage? - For inches (in to feet): divide the value by 12. How to measure carpet for your room. Convert 6230 Square Feet to Square Inches (6230 ft2 to in2) with our Area converter. 1416 times the radius (in feet) squared. Directions: Enter any combination of feet and/or inches into the calculator below. Some basic units of volume are Cubic. So if you have a shape measuring 4ft 8 ins x 1ft 9ins, your dimensions become 56ins x 21ins. 91 Metres to Yards 1. 45 sq centimeters. It's also one of the easiest to apply. 5 square feet, if your panel is rated at 265 watts, you would need to install about 23 solar panels for that sized system, which will take up a total of 400 square feet. The best way to measure a room is to break it down in to rectangular areas. Degrees, Minutes, Seconds and Decimal Degrees Conversion Square Footage Calculator Cubic Footage Calculator Square Footage to Cubic Footage Conversion Construction Calculators: ===== Feet and Inches Calculator(add, subtract, multiply and divide) Metre,CM and MM Calculator(+,-,*,/) Feet,inches TO Metre,cm,mm Conversion Feet,inches and Metre,cm. The densities used to calculate metal weights based on dimesion are taken from reliable sources such as MatWeb and Metal Suppliers Online. Just break out your measuring tape—or a laser measure—to get its. The square foot (abbreviation: sq ft or Sq Ft, plural form: square feet) is a unit of area used in several different systems, including Imperial units, United States customary units and English units. Simply input the measurements of your room into our easy square footage calulator, below. The carpet calculator will provide the total square feet and square yards required for the dimensions you provide. To do a calculation follow the following steps :-. Calculating Square Feet in Square and Circle Areas. I have =IF(G5>12,G5/144) and G5 is the cell used to enter your inch value. On the (first) Feet & Inches line, the number of feet must be a whole number greater than, or equal to, 1 and the inches must be less than 12. How to calculate square footage really isn’t that difficult once you do it a couple times. When there is a damaged backlink we're not in control of it. 83612736 square meters, 9 square feet, and 8361. All calculations for your Home Insulation Program rebate should be in square feet. On the command line, AutoCAD will tell you the SQUARE FOOTAGE, SQUARE INCHES, AND PERIMETER. more definition+ In relation to the base unit of [area] => (square meters), 1 Square Feet (ft2, sq ft) is equal to 0. Multiply this final number by 12 (the number of inches in a foot). A square footage calculator is an automated program used to calculate the number of square feet of a given area. Hopefully for those of you with simple math brains like me, this helps you move forward with your backsplash project and how to calculate square footage. 583 square feet. American and Britsh Units Conversion (from and to) online calculators. L X W X H = 12"X12"X12"=1728 cu in You then multiply 9250cu in and (1/1728cu ft) Really you are dividing 9250 by 1728. I need to know how to calculate volume in square feet. For instance, if you plan to install trim around the entire perimeter of a window that is 48 inches long by 30 inches wide, you would add the linear foot equivalents of 4 and 21/2 to get a total of 61/2 linear feet. customary measurement systems. There are 144 square inches in one square foot. To convert inches to feet, simply divide inches by 12, the number of inches in a foot. CLICK HERE for KILOGRAM EXPLAINED. Convert 6230 Square Feet to Square Inches (6230 ft2 to in2) with our Area converter. Works both in metric and imperial units. Here are a few factors to. therefore it makes sense to know how to convert the dimensions of your room into square yards. A square footage calculator is an automated program used to calculate the number of square feet of a given area. and G5 is the cell used to enter your inch value. 00694 or divide by 144. Convert Square Inches to Square Feet. Feet and inches calculator that allows you to perform arithmetic operations of ft and in, i. IMPORTANT NOTICE : Do not use the figures given here as sole source for any commercial (or legal) purpose involving cost, money, sales, purchase etc. If your business works with construction supplies, clothing or room dimensions, you will. For a Triangle Length of the base, in feet inches Length of the height, in feet ft. Re: Inches to Square foot I have a total of 18 pieces of material (6) 1"x3"; (8) - 2"x3" and (4) 4"x20" How do I calculate the total inches for each specific size, and how do I convert the total amount of inches into sq ft?. If the Square Feet to Cubic Feet calculator was useful to you, there are several simple ways for you to share this tool with others or display the results on your own webpage. You can then find out a volume by multiplying 0. 1 square foot is equivalent to 144 square inches (Sq In), 1/9 square yards (Sq Yd) or 0. → 0 sq 3 inches (recommended). Source(s):. History/origin: The origin of the square foot can be seen in the term itself. At the time of publication, the median price-per-square foot of homes in the United States is $118, though large variations exist among states and neighborhoods. Rentable space with the load factor is the price you want to know because that is what you will be paying for. This is found by multiplying 12 inches by 12 inches. Rainfall calculator (English units) How much water falls during a storm? Use our metric-system version. Now to find a room's square footage, type AREA on the COMMAND LINE, then click on each corner of the room. Whether you're selling your home or looking to buy, one concept that's crucial to understand is how to calculate square feet. A square meter is a square with a side length of one meter. Conversion Calculators. Typically in the US, feet, and inches are used for measuring. 06944 feet squared. I need a formula to automatically convert inches to square feet. Since 1 acre-feet equals 43560 cubic feet you can then divide 63249. As is a board that is 12 inches long, 6 inches wide, and 2 inches thick. Take the length of your room rounded UP to the next 1/2 of a foot (6inches),and multiply by the width of the room also rounded UP to the nearest 6 inches, (eg; if a room is 6 foot 2 inches by 12 foot 9 inches I would calculate 6 foot 6 inches or 6 1/2 feet by 13 feet 6. Instantly Convert Square Feet (sq ft) to Circular Inches (circ in) and Many More Area Conversions Online. Add square feet of both ends to square feet of side for total square feet of cylinder. ) You can also use this tool to convert inches to feet and calculate square feet. I have =IF(G5>12,G5/144) and G5 is the cell used to enter your inch value. No conversion needed, since length, width and area units can be selected independently, so this calculator also functions as a unit converter. Output will be in feet. Since house siding is often measured in feet and inches (example: 10 feet and 6 inches) this calculator allows you to enter feet and inches, feet only, inches only or any combination of the two. 5 square feet, if your panel is rated at 265 watts, you would need to install about 23 solar panels for that sized system, which will take up a total of 400 square feet. 69444 feet squared. 1) multiplied by 1,000 yields an effective area of 1,100 square feet. 00064516 square meters. Convert the inches to feet and inches by dividing by 12. If you convert 4 inches to feet you get 0. 1 square foot is literally 1 foot squared (or 1 foot times 1 foot); this means it is also 12 inches times 12 inches, or 144 square inches. Since 1 square foot is equivalent to 144 square inches, the fraction is equivalent to 1. Convert Square Inches to Square Feet. Convert the depth in inches into a decimal fraction of one foot by dividing the depth by 12. convert square inches to square centimeters pre-calculated tables and charts The kilogram by definition is measured as a constant starting May 2019. Use this stone calculator to help you determine how many square feet of material your project requires. Estimate the number of concrete blocks needed by multiplying the area by 1. Divide this number by 144 to arrive at the area in square feet: 4 sq in/144 = 0. An area is the size of a two-dimensional surface. For example, 25 square feet would be 25 x = 0 inches. Square Millimeter (sq mm) is a unit of Area used in Metric system. Calculate the area of a pool so you'll know how much land a round pool will take up on your property. The feet to inches conversion is useful and important, so here's the formula and examples that show how to convert feet to inches and inches to feet. Since house siding is often measured in feet and inches (example: 10 feet and 6 inches) this calculator allows you to enter feet and inches, feet only, inches only or any combination of the two. The English System (imperial, engineering) uses pounds (lb, force) and feet (ft) or inches (in). Measuring the amount of carpet you need is done by identifying the square footage of the area. 96 feet into inches by multiplying it by 12 then the answer will be 275. A linear foot, also referred to as a "lineal foot", is 12 inches or one foot. Working through the steps described in this article will enable you to calculate your area accurately. The formula wrks great, but only if you enter over 12 inches. When you are considering siding for your home, calculating your exterior square footage is a very wise thing to do. – For meters (m to feet): multiply the value by 3. Total Square Feet / 9 = Square Yards To calculate the square footage of carpet you’ll need, multiply the length times the width, in feet, of any space where you’ll install flooring. 1 ft² is inches. Example: If you calculate the area in square inches of one of the 2-inch-square bathroom tiles in the example above, you'll find that each tile has an area of 4 sq in. Convert the depth in inches into a decimal fraction of one foot by dividing the depth by 12. It's really quite easy to do so, just following the few simple steps of this equation:. Note: How to use the conversion factors: Enter a number in either box, then click the other box. 3 Acres equals how many Square Inches. The chart below has fixed square footage in the left column (highlighted in beige) and spacing distances across the top (highlighted in yellow). Task: Convert 9 square feet to square inches (show work) Formula: ft 2 x 144 = in 2 Calculations: 9 ft 2 x 144 = 1,296 in 2 Result: 9 ft 2 is equal to 1,296 in 2 Conversion Table For quick reference purposes, below is a conversion table that you can use to convert from ft 2 to in 2. Square Foot (sq ft) is a unit of Area used in Standard system. For example, if the if the length of the room is 11 feet and the width is 18, the square footage of that area would be 198. To do a calculation follow the following steps :-. Definitions. customary unit (non-SI, non-metric) of area, used mainly in the United States. For a Triangle Length of the base, in feet inches Length of the height, in feet ft. 12 cubic feet. Free online calculator for adding, subtracting, multiplying and dividing mixed numbers and fractions. Conversion Calculators. To calculate the square inches of the surface area of a box the formula is 2*w*h + 2*l*h + 2*w*l. 5 for 168 and a half, 168. After multiplication, you will get the result as 64. Actually there is a much easier way of determining the number of inches in any square foot radius. Then you can calculate the square footage of each wall and subtract the sizes of windows and doors. Since house siding is often measured in feet and inches (example: 10 feet and 6 inches) this calculator allows you to enter feet and inches, feet only, inches only or any combination of the two. Square Yard (sq yd, yd 2) The area of a square measuring one yard on a side. ) Unvalued zeros on all numbers have been suppressed. Then, put the dimensions of each area in to the calcualtor (if you're stuck on Imperial - as we are - you can input in feet and inches and still get a square metres result), then add the areas together. For example, a 3 inch layer of rock divided by 12 equals 0. The calculation of square feet, square yards and square inches is among the most common of the math operations you'll use in home building and remodeling. So, if you have an area in square feet, simply multiply it by 144 to determine the area in square inches. Feet to inches (ft to in) conversion calculator and how to convert. 1 ft 1 ft 1 yd 1 ft 1 ft 1 ft 1 yd 1 ft. Example: 51/2"X2'X58" (five and one-half inched by two feet by 58 inches)=? sq. If your figures are not in feet, use the length converter to convert them. These lines should be measured in feet (ft) for square footage calculations and if needed, converted to inches (in), yards (yd), centimetres (cm), millimetres (mm) and metres (m).