Convert square feet to square yards
To convert square feet to square yards, divide the square-foot value by 9. To convert square yards back to square feet, multiply by 9. One square yard contains 9 square feet because a yard is 3 feet long and an area unit squares both dimensions: 3 ft × 3 ft = 9 sq ft.
The reverse check is 10 sq yd × 9 = 90 sq ft.
Square-foot to square-yard reference
| Square feet | Square yards | Typical check |
|---|---|---|
| 9 | 1 | One 3 ft × 3 ft area |
| 45 | 5 | 45 ÷ 9 |
| 90 | 10 | 90 ÷ 9 |
| 180 | 20 | 180 ÷ 9 |
| 450 | 50 | 450 ÷ 9 |
| 900 | 100 | 900 ÷ 9 |
Formula and worked examples
Use this formula when the starting number is in square feet:
square yards = square feet ÷ 9
For 125 sq ft, divide 125 by 9 to get approximately 13.8889 sq yd. If you only need a two-decimal display, that is 13.89 sq yd. For a room measuring 12.5 ft by 10 ft, first calculate its area as 125 sq ft, then divide by 9. Do not divide each side by 9; the factor applies to the finished area.
To convert the other way, use square feet = square yards × 9. A 16 sq yd carpet area is 144 sq ft. Multiplying by 9 is a useful reverse check if a listing or quote uses square yards and your room estimate uses square feet.
Do not confuse yards with square yards
A yard is a unit of length, while a square yard is a unit of area. A 3-yard length is 9 feet long. A 3-square-yard area is 27 square feet. If you are measuring a rectangular room, calculate its area from two lengths first; convert the result to square yards only after the multiplication. Area results need square units such as sq ft, sq yd or m².
When this conversion is useful
Carpet, fabric, landscaping and construction estimates may use different area units. Check the unit shown on the quote or product listing before comparing prices. A price per square yard is not directly comparable to a price per square foot until both use the same unit. For a per-area price, one square yard covers 9 square feet, so multiply a per-square-yard price by 1/9 to express the same rate per square foot, or multiply a per-square-foot rate by 9 to express it per square yard.
Area conversion does not add material for cutting, seams, damage or package rounding. If you are estimating an order, calculate the room area, decide on any product-specific allowance with the supplier or installer, then use the package or quote unit. For a room measurement, try the square footage calculator; for boxes and a visible allowance calculation, use the flooring calculator.
Rounding and accuracy
Keep the unrounded result for later calculations, then round for display or communication. If a material order is priced by a package, follow package coverage and round the number of whole packages up; rounding a converted area to two decimals is not the same as deciding how much to buy. A conversion is mathematically exact when the input value is exact, but real measurements may still be approximate because of wall irregularities, tape placement or the dimensions recorded.