Trades & materials
How many tins of paint will cover the room for all coats?
Deduct unpainted area, stopping at zero. Multiply by coats, divide by the product coverage and round up to full tins. Use a coverage figure appropriate to the surface and application method.
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Worked example
With the example inputs below, the calculator returns these results.
Full tins to buy 3
- Gross wall area
- 82 m²
- Unpainted openings
- 12 m²
- Coats planned
- 2 coats
- Product coverage per litre
- 11 m²/L
- Tin volume
- 5 L
Other results
- Paint required (L)
- 12.73
- Volume left after painting (L)
- 2.27
Use your own figures
Estimate litres for the painter and full tins for the purchase order. Open the worksheet, replace the example values, then copy or print the result.
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