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Roof Area

Calculate Roof Area instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

Roof Area

Lengthm
Widthm
Slope angle°
Slope area
92.376m²
Calculate Roof Area instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

More about: Roof Area

What it calculates

The “Roof Area” calculator computes Slope area in m² from 3 parameters: length (m), width (m), slope angle (°).

Used in design, material estimation, and structural calculations.

Example calculation

With parameters Length = 10 m, Width = 8 m, Slope angle = 30 ° the result is 92.38 m².

How to use

  1. Enter the parameter values — every field above is adjustable with a slider.
  2. The result and related metrics are calculated automatically as you type.
  3. Use the additional metrics shown (if any) where needed.
  4. Copy the result or bookmark the page.

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