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How to convert square feet to square inches (ft² to in²)
The formula for converting square feet to square inches is: in² = ft² × 144. To calculate the square foot value in square inches first substitute the square foot value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 square foot in square inches we follow these steps:
in² = ft² × 144
in² = 1 × 144
in² = 144
In other words, 1 square foot is equal to 144 square inches.
Let's take a look at an example. The step-by-step process to convert 9 square feet to square inches is:
- Understand the conversion formula: in² = ft² × 144
- Substitute the required value. In this case we substitute 9 for ft² so the formula becomes: in² = 9 × 144
- Calculate the result using the provided values. In our example the result is: 9 × 144 = 1296 in²
In summary, 9 square feet is equal to 1296 square inches.
Converting square inches to square feet
In order to convert the other way around i.e. square inches to square feet, you would use the following formula: ft² = in² × 0.0069444444. To convert square inches to square feet first substitute the square inch value into the above formula, and then execute the calculation. If we wanted to calculate 1 square inch in square feet we follow these steps:
ft² = in² × 0.0069444444
ft² = 1 × 0.0069444444
ft² = 0.0069444444
Or in other words, 1 square inch is equal to 0.0069444444 square feet.
Conversion Unit Definitions
What is a Square Foot?
What is a Square Inch?
Square Feet To Square Inches Conversion Table
Below is a lookup table showing common square feet to square inches conversion values.
|Square Foot (ft²)||Square Inch (in²)|
|1 ft²||144 in²|
|2 ft²||288 in²|
|3 ft²||432 in²|
|4 ft²||576 in²|
|5 ft²||720 in²|
|6 ft²||864 in²|
|7 ft²||1008 in²|
|8 ft²||1152 in²|
|9 ft²||1296 in²|
|10 ft²||1440 in²|
|11 ft²||1584 in²|
|12 ft²||1728 in²|
|13 ft²||1872 in²|
Other Common Square Foot Conversions
Below is a table of common conversions from square feet to other area units.
|1 square foot in square meters||0.09290304 m²|
|1 square foot in square kilometers||0.00000009290304 km²|
|1 square foot in square centimeters||929.0304 cm²|
|1 square foot in square millimeters||92903.04 mm²|
|1 square foot in hectares||0.0000092903 ha|
|1 square foot in square miles||0.0000000358700381 mi²|
|1 square foot in square yards||0.1111111111 yd²|
|1 square foot in acres||0.0000229568 ac|