Square feet to square inches
Multiply square feet by 144 to get square inches.
10 ft² = 1,440 in²
How to convert square feet to square inches
The square inch is exactly 6.4516 cm² (2.54 cm squared). The square foot is exactly 0.09290304 m² (0.3048 m squared), by the 1959 agreement.
Worked example — 10 ft²: 10 × 144 = 1,440 in².
Square feet to square inches table
| Square feet | Square inches |
|---|---|
| 0.5 ft² | 72 in² |
| 1 ft² | 144 in² |
| 2 ft² | 288 in² |
| 5 ft² | 720 in² |
| 10 ft² | 1,440 in² |
| 20 ft² | 2,880 in² |
| 50 ft² | 7,200 in² |
| 100 ft² | 14,400 in² |
| 500 ft² | 72,000 in² |
Reverse and related
About square feet and square inches
Square foot (ft²)
1 ft² = 144 in²Definition. Exactly 0.09290304 m² (0.3048 m squared), by the 1959 agreement
History and origin
The square foot is the area of a square one foot on each side, tied to the international foot fixed in 1959. It equals exactly 0.09290304 square metres.
Current use
Square feet are the standard measure for real estate, flooring and carpet in the United States.
Source: NIST Handbook 44, Appendix C (area); 1959 yard-and-pound agreement
Square inch (in²)
1 in² = 0.00694444 ft²Definition. Exactly 6.4516 cm² (2.54 cm squared)
History and origin
The square inch is a square one inch on each side, derived from the inch fixed at 2.54 centimetres in 1959. It equals exactly 6.4516 square centimetres.
Current use
Square inches measure small parts, print areas and screens.
Source: NIST Handbook 44, Appendix C (area); 1959 yard-and-pound agreement
Where people use this
Square feet: US real estate, flooring and carpet. Square inches: small parts, print and screens. 1 sq ft is exactly 144 sq in.
Every value is carried to full double precision; the display is rounded.
Both units are defined in NIST Handbook 44, Appendix C (area); 1959 yard-and-pound agreement.
Questions people ask
How many square inches in a square foot?
One square foot is exactly 144 square inches.
How many sq in is 2 sq ft?
2 sq ft is 288 sq in.
How many sq in is half a sq ft?
Half a square foot is 72 square inches.