In 1 square inches there are 0.006944 square feet. Meanwhile in 1 square feet there are 144 square inches. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Square feet to Square inches calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert square inches (in²) to square feet (ft²), use the fact that 1 square foot = 144 square inches (since 12 inches × 12 inches = 144).
Conversion formula:
ft² = in² ÷ 144
Quick reference:
1 in² = 0.00694444 ft²
Example:
If you have 720 in², divide by 144:
720 ÷ 144 = 5 ft²
This square inches to square feet conversion is common for flooring, room areas, real estate, and construction.
There are 144 square inches in 1 square foot. A foot is 12 inches, so area is 12 times 12, which equals 144.
Divide the number of square inches by 144.
Formula:
Square feet = Square inches ÷ 144
Multiply the number of square feet by 144.
Formula:
Square inches = Square feet × 144
Because 1 foot equals 12 inches, and area uses squared units. So 1 square foot is 12 inches by 12 inches, which equals 144 square inches. Dividing by 144 changes the unit from in² to ft².
100 in² ÷ 144 = 0.6944 ft² (about 0.69 ft²).
144 in² ÷ 144 = 1 ft².
200 in² ÷ 144 = 1.3889 ft² (about 1.39 ft²).
1,000 in² ÷ 144 = 6.9444 ft² (about 6.94 ft²).
First find the area in square inches, then divide by 144.
Steps:
First find the circle’s area in square inches, then divide by 144.
Steps:
Break the shape into simple parts like rectangles and triangles. Add the areas in square inches, then divide the total by 144. For curved edges, measure as best you can and treat them as circles or segments.
Square inches (in²) measure area. One square inch is a 1-inch by 1-inch square. It’s common for small items like tiles, screens, and parts.
Square feet (ft²) measure area. One square foot is a 1-foot by 1-foot square. It’s common for rooms, flooring, walls, and lots.
No. Dividing by 12 converts inches to feet for length, not area. For area, you must divide by 144.
Use 144 as the key number. For quick estimates, you can use 150 for rough math.
The rule stays the same. Divide by 144 and keep the decimal.
Example:
52.5 in² ÷ 144 = 0.3646 ft²
1 in² ÷ 144 = 0.006944 ft².
Measure the total area in square inches if your tile size is in inches. Convert the final area to square feet by dividing by 144. For tile counts, find tile area in in², then divide the project’s total in² by tile in².
Many materials are priced per square foot, but product sizes may be in inches. Converting square inches to square feet helps you match measurements to pricing and avoid buying too much or too little.
Here are quick reference values:
The Calculate Box tool to convert square inches to square feet uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a square inches value in the box and have it instantly converted to square feet.