Convert square feet to square inches

Enter the number of square feet you want to convert to square inches in the text box below. The conversion to area in square inches will update as you type.

Answer: 144
square feet (sq ft)
{"answerString":"144","answerSymbol":"square inches"}
1 square feet = 144 square inches

Precise decimal and fraction answers

The conversion in square inches rounded to six significant decimal places is 1 sq ft = 144.000000 sq in. The precise fraction answer is 144 0/1 sq in.

Decimal Precision

Conversion from one to ten decimal places

  • 1 sq ft = 144.0 sq in
  • 1 sq ft = 144.00 sq in
  • 1 sq ft = 144.000 sq in
  • 1 sq ft = 144.0000 sq in
  • 1 sq ft = 144.00000 sq in
  • 1 sq ft = 144.000000 sq in
  • 1 sq ft = 144.0000000 sq in
  • 1 sq ft = 144.00000000 sq in
  • 1 sq ft = 144.000000000 sq in
  • 1 sq ft = 144.0000000000 sq in

Square feet to square inches conversion factor and formulas

Formula

The conversion factor between square feet and square inches is 144. This represents the ratio of square inches per one square foot. To calculate the value in square inches, we can either multiply by the conversion factor or divide by its inverse.

Multiplication

To convert from square feet to square inches, multiply square feet by 144.
The formula is expressed as:
sq ft × 144 = sq in

Division

Alternatively we can divide by the inverse conversion factor to get the same result.
The inverse of 144 is 1/144 or 0.007. To convert from square feet to square inches, divide square feet by 0.007.
The formula is expressed as:
sq ft ÷ 0.007 = sq in

About this conversion

When converting from from square feet to square inches, both units are within the US Customary / UK Imperial system and conversion factors are governed by standards set by the controlling body.

Reverse this conversion

Convert from square inches to square feet instead.

1 square feet to other area units

Metric

  • 1 sq ft = 9.29×10-6 ha
  • 1 sq ft = 9.29×10-8 km2
  • 1 sq ft = 0.093 m2
  • 1 sq ft = 9.29 dm2
  • 1 sq ft = 929.03 cm2
  • 1 sq ft = 92,903.04 mm2
  • 1 sq ft = 9.29×1010 µ2
  • 1 sq ft = 9.29×1016 nm2

Imperial/U.S.

  • 1 sq ft = 2.296×10-5 acre
  • 1 sq ft = 3.587×10-8 sq mi
  • 1 sq ft = 0.111 sq yd
  • 1 sq ft = 1 sq ft
  • 1 sq ft = 144 sq in

References and Citations

  1. National Institute of Standards and Technology (NIST) General Tables of Units of Measurement

Square feet to square inches conversion table

sq ft sq in
1 sq ft 144 sq in
2 sq ft 288 sq in
3 sq ft 432 sq in
4 sq ft 576 sq in
5 sq ft 720 sq in
6 sq ft 864 sq in
7 sq ft 1,008 sq in
8 sq ft 1,152 sq in
9 sq ft 1,296 sq in
10 sq ft 1,440 sq in
sq ft sq in
20 sq ft 2,880 sq in
30 sq ft 4,320 sq in
40 sq ft 5,760 sq in
50 sq ft 7,200 sq in
60 sq ft 8,640 sq in
70 sq ft 10,080 sq in
80 sq ft 11,520 sq in
90 sq ft 12,960 sq in
100 sq ft 14,400 sq in
1,000 sq ft 144,000 sq in

More sq ft to sq in conversions

Frequent conversions from square feet

sq ft to sq in sq ft to m2 sq ft to acre sq ft to sq mi sq ft to ha