Conversion
Squares to square feet (roofing)
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One roofing square equals 100 square feet of roof surface. Converting between the two is the most common roofing-math step.
1 roofing square = 100 square feet. Multiply squares by 100 to get square feet.
Conversion table
| Squares | Square feet |
|---|---|
| 1 | 100 |
| 2 | 200 |
| 5 | 500 |
| 10 | 1,000 |
| 15 | 1,500 |
| 20 | 2,000 |
| 25 | 2,500 |
| 30 | 3,000 |
| 40 | 4,000 |
| 50 | 5,000 |
The formula
square feet = squares × 100
Why roofers use squares
A roofing square is the trade’s unit of area so material orders come out in whole bundles. See what is a roofing square or jump to the roof area calculator.
Need a different area unit? Convert square feet to square metres on unitcheatsheet.com.
Want every roofing conversion in one place? Use the master roofing unit converter.