Square Inches - Square Feet Converter
Convert between square inches (in²) and square feet (ft²). This converter is part of the full area converter tool. Simply choose which unit you want to convert from and to, enter a value and click the 'convert' button. A reference chart can be found further down the page.
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Converting square feet and square inches
Some commonly asked questions are included below, as well as a reference chart. When making manual conversions, you can use the converter at the top of this page to check your answer.
How many square inches are there in 1 square foot?
There are 144 square inches in 1 square foot. To convert from square feet to square inches, multiply your figure by 144 (or divide by 0.0069444444444444) .
How many square feet are there in 1 square inch?
There are 0.0069444444444444 square feet in 1 square inch. To convert from square inches to square feet, multiply your figure by 0.0069444444444444 (or divide by 144) .
In the chart below, figures are rounded to a maximum of 3 decimal places (6 with smaller numbers) to give approximations.
|Square Feet||Square Inches||Square Inches||Square Feet|
|0.1||14.4 in²||0.1||0.001 ft²|
|1||144 in²||1||0.007 ft²|
|2||288 in²||2||0.014 ft²|
|3||432 in²||3||0.021 ft²|
|4||576 in²||4||0.028 ft²|
|5||720 in²||5||0.035 ft²|
|6||864 in²||6||0.042 ft²|
|7||1008 in²||7||0.049 ft²|
|8||1152 in²||8||0.056 ft²|
|9||1296 in²||9||0.062 ft²|
|10||1440 in²||10||0.069 ft²|
|20||2880 in²||20||0.139 ft²|
|30||4320 in²||30||0.208 ft²|
|40||5760 in²||40||0.278 ft²|
|50||7200 in²||50||0.347 ft²|
|60||8640 in²||60||0.417 ft²|
|70||10080 in²||70||0.486 ft²|
|80||11520 in²||80||0.556 ft²|
|90||12960 in²||90||0.625 ft²|
|100||14400 in²||100||0.694 ft²|
What is a square foot?
The square foot is used as a form of measurement within Canada and the United States. It can be adopted to describe the amount of floor space (for real estate) or the overall size of an exterior property. Architects will also refer to square feet when designing new buildings. One square foot is a bit smaller than an average-sized piece of A4 printer paper. One square foot can be translated to 0.092 square metres. Sometimes, the force of the modern hydraulic press is measured in pounds per square inch or square foot.
What is a square inch?
A square inch is a common unit of measurement within the United States and the United Kingdom. It can be used throughout numerous industries such as construction, graphic design, textiles and painting. Some common abbreviations include sq. in., sq. inches and in/-2. One square inch can approximate the size of many postage stamps. A single square inch is equal to 6.45 square centimeters.
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