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Paint calculator

Estimate paint quantity from the surface area, number of coats, manufacturer coverage and an allowance.

Free & no registration Calculated in your browser
01

Your inputs

The starting values are an example.

Decimals: 12.5 · Thousands: 1,234.56. Follow the field instructions for lists.

02

Your result

Enter your values and select Calculate.

Your calculation will appear here.

Your result will include the relevant values and units.

Understand the calculation

Formula and example

How it is calculated

Litres = area × coats / coverage × (1 + allowance/100)

Worked example

40 m² with two coats, 10 m²/l coverage and a 10% allowance requires 8.8 l of paint.

Things to check

  • Enter the wall or ceiling area that will actually be painted. Absorbent or rough surfaces may increase consumption.