Paint Calculator 計算機

この計算機は扱います: Estimate paint units from wall area, coverage per unit, coat count, and waste allowance.

Construction 更新 2026-05-11

入力

Wall area (area units) Coverage per paint unit (area/unit) Coats Waste allowance (%)

Paint units needed 値を入力して計算します。

Adjusted area (area units) 値を入力して計算します。

paint units = wall area x coats x (1 + waste percent) / coverage.

この計算機は扱います: Estimate paint units from wall area, coverage per unit, coat count, and waste allowance.

480 square feet, 2 coats, 10% waste, and 350 coverage needs about 3.02 paint units.

Round up to whole cans when buying paint.

Subtract large windows and doors if the estimate is too high.

What inputs does this calculator need?

Wall area, Coverage per paint unit, Coats, Waste allowance.

How should I round the result?

Keep extra digits while comparing values, then round for the final decision or report.

Can I reuse the result in another calculation?

Yes, but preserve the original inputs and units so the next calculation stays traceable.