How to use this calculator
- Select the unit of the known roof area.
- Enter the area.
- Calculate equivalent square feet, square meters, and roofing squares.
How the calculation works
A roofing square is an area unit equal to exactly 100 square feet. The calculator first converts the entered value to square feet, then derives the other units.
Formula
1 roofing square = 100 square feet Roofing squares = square feet ÷ 100 Square meters = square feet × 0.09290304
Worked example
A roof area of 2,500 square feet equals 25 roofing squares and approximately 232.26 square meters.
Project considerations
- This calculator converts a known area only.
- It does not calculate pitch, waste, or product quantity.
- Use the Roofing Calculator when the surface area still needs to be derived from dimensions.
Frequently asked questions
What is one roofing square?
One roofing square is exactly 100 square feet of roof area.
Does this add material waste?
No. The tool intentionally performs direct area conversion without changing the entered area.