Convert square inches to square feet

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

Answer: 0.0069
square inches (sq in)
{"answerString":"0.007","answerSymbol":"square feet"}
1 square inches = 0.007 square feet

Precise decimal and fraction answers

The conversion in square feet rounded to six significant decimal places is 1 sq in = 0.00694444 sq ft. The precise fraction answer is 1/144 sq ft.

Decimal Precision

Conversion from one to ten decimal places

  • 1 sq in = 0.007 sq ft
  • 1 sq in = 0.0069 sq ft
  • 1 sq in = 0.00694 sq ft
  • 1 sq in = 0.006944 sq ft
  • 1 sq in = 0.0069444 sq ft
  • 1 sq in = 0.00694444 sq ft
  • 1 sq in = 0.006944444 sq ft
  • 1 sq in = 0.0069444444 sq ft
  • 1 sq in = 0.00694444444 sq ft
  • 1 sq in = 0.006944444444 sq ft

Square inches to square feet conversion factor and formulas

Formula

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

Division

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

Multiplication

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

About this conversion

When converting from from square inches to square feet, 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 feet to square inches instead.

1 square inches to other area units

Metric

  • 1 sq in = 6.452×10-8 ha
  • 1 sq in = 6.452×10-10 km2
  • 1 sq in = 6.452×10-4 m2
  • 1 sq in = 0.065 dm2
  • 1 sq in = 6.452 cm2
  • 1 sq in = 645.16 mm2
  • 1 sq in = 6.452×108 µ2
  • 1 sq in = 6.452×1014 nm2

Imperial/U.S.

  • 1 sq in = 1.594×10-7 acre
  • 1 sq in = 2.491×10-10 sq mi
  • 1 sq in = 7.716×10-4 sq yd
  • 1 sq in = 0.007 sq ft
  • 1 sq in = 1 sq in

References and Citations

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

Square inches to square feet conversion table

sq in sq ft
1 sq in 0.007 sq ft
2 sq in 0.014 sq ft
3 sq in 0.021 sq ft
4 sq in 0.028 sq ft
5 sq in 0.035 sq ft
6 sq in 0.042 sq ft
7 sq in 0.049 sq ft
8 sq in 0.056 sq ft
9 sq in 0.062 sq ft
10 sq in 0.069 sq ft
sq in sq ft
20 sq in 0.139 sq ft
30 sq in 0.208 sq ft
40 sq in 0.278 sq ft
50 sq in 0.347 sq ft
60 sq in 0.417 sq ft
70 sq in 0.486 sq ft
80 sq in 0.556 sq ft
90 sq in 0.625 sq ft
100 sq in 0.694 sq ft
1,000 sq in 6.944 sq ft

More sq in to sq ft conversions

Frequent conversions from square inches