TOOLS / FINISHING

Paint and coating area calculator

Estimate wall area and paint quantity from room dimensions, openings, coverage and number of coats.

Mode

Room length (m)Room width (m)Wall height (m)Doors/windows area (m²)

Coverage per litre (m²)Number of coats

Estimated paintable wall area42.80 m²

Estimated paint required: 8.56 litres (85.60 m² coated)

Worked example (plate mode): 2 × 1 m plate, 1 side, 2 coats, 10 m²/L, 10% waste = 2.00 m² surface, 4.00 m² coated, 0.44 L. Coverage is a label value only — it varies with paint type, surface texture, colour change, application method and preparation. Use the paint manufacturer's coverage figure where available.

For practical estimates

This tool provides a starting estimate for planning paint quantity. Always verify the product coverage rate and account for surface preparation.