Convert 40 ft2 to yd2
40 square feet = 4.444444 square yards
Sumwise · Maintained by Theo Abbott (pen name) · automated checks · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How the checks work
How to convert square feet to square yards
- Formula:
square yards = square feet × 0.11111111 - Put in the value: 40 square feet.
- Result: 4.444444 square yards.
Square feet to square yards table
| square feet | square yards |
|---|---|
| 1 ft2 | 0.11111111 yd2 |
| 2 ft2 | 0.22222222 yd2 |
| 5 ft2 | 0.55555556 yd2 |
| 10 ft2 | 1.111111 yd2 |
| 20 ft2 | 2.222222 yd2 |
| 40 ft2 | 4.444444 yd2 |
| 50 ft2 | 5.555556 yd2 |
| 100 ft2 | 11.111111 yd2 |
| 500 ft2 | 55.555556 yd2 |
| 1,000 ft2 | 111.111111 yd2 |
Converting the other way: square yards to square feet
square feet = square yards × 9. So 4.444444 square yards is back to 40 square feet; one square yard is 9 square feet. See the square yards to square feet table.
Quick estimate in your head
For a rough answer, multiply by about 0.1: 40 × 0.1 ≈ 4 yd2, against the exact 4.444444 yd2 (10.0% out). Good enough to check that a calculated result is sensible.
Common mistakes
The usual slip is using the factor the wrong way round. A square foot is smaller than a square yard, so the number of square yards must come out smaller than the number of square feet. If your answer goes the other way, divide instead of multiplying.
About the units
Square foot (ft2) and square yard (yd2) are both units of area. One square foot equals 0.11111111 square yards, and one square yard equals 9 square feet. Results on this page are rounded for display; the conversion itself uses the exact definitions.
Area conversions come up when buying flooring, paint or turf, comparing house and flat sizes, and measuring land and gardens.
40 square feet in other units
The most readable unit for this amount is square meters (3.716122).
- 37,161.22 cm2
- 3.716122 m2
- 0.00000372 km2
- 0.00037161 ha
- 5,760 in2
- 4.444444 yd2
- 0.00091827 ac
- 0.00000143 mi2
How answers are calculated and checked: methodology.
Questions
How many square yards are in 40 square feet?
4.444444 square yards.
What is the formula to convert square feet to square yards?
square yards = square feet × 0.11111111
How many square yards are in one square foot?
One square foot is 0.11111111 square yards, so multiply any number of square feet by 0.11111111.
Is 40 ft2 more than 40 yd2?
No. 40 square feet is 4.444444 square yards, which is less than 40 square yards.
How do I convert square feet to square yards in a spreadsheet?
Put the number of square feet in A1 and type =A1*0.11111111 in the next cell. Fill the formula down to convert a whole column.