Paint calculator
Estimate how much paint your project needs in seconds. Enter your room size and we’ll work out the litres and tins — then get an exact quote from the factory.
How it works
How to calculate paint quantity
- Measure the room — length, width and wall height in metres.
- Find the wall area — 2 × (length + width) × height, then subtract ~15% for doors and windows.
- Multiply by coats — most walls need two coats for an even finish.
- Divide by coverage — our emulsions cover roughly 11–13 m² per litre per coat.
This is an estimate. Coverage varies with surface texture, porosity and application method — for an exact quantity and price, send us your measurements and our team will calculate it for you.