Roof plane area and module count calculator

One rectangular roof plane. All offsets are your own inputs, not code values. The defaults are the page's placeholders. It does not estimate energy.

Plan width along the eave (ft)

Plan run, eave to ridge (ft)

Horizontal distance, not along the slope.

Pitch is written as

Pitch value

Pitch error to test (degrees)

Shown as read too low and too high.

Eave offset (in, along the slope)

Ridge offset (in, along the slope)

Rake offset, each side (in)

Module long side (mm)

Module short side (mm)

Gap between modules (mm)

Module power (W)