The paint calculator below will help you work out how much paint you will need for your next project! To calculate this manually see A Guide to Calculating Paint Amounts.
How to use the Paint Calculator
- Fill in the measurements in the top table.
- If you know the paint coverage of the paint you are using add it in (if unsure leave blank).
- Press the calculate button.
| Measurements | ||
| Room Length: | (metres) | |
| Room Width: | (metres) | |
| Wall Height: | (metres) | |
| Doors: | ||
| Windows (single frame): | ||
| Paint Coverage: | m2 per litre | |
On average, a litre of paint will cover approximately 14-16 square metres. However this can vary between brands of paint. If the paint you are using specifies the amount of coverage you should get (check the label), replace the Paint Coverage number above.
| Results | ||
| Wall paint: | (litres) | |
| Ceiling paint: | (litres) | |
The amount of coverage you will get will depend on the type of surface you are painting. While the above results can be used as a guide for smooth walls, you will need to add 20% more if you are painting rough, porous or previously unpainted walls. Note: The results shown are for one coat only.