How is it calculated?
Typical coverage is about 10 m² per litre (350 ft² per gallon) per coat on smooth walls. Rough, porous or dark-to-light surfaces need more.
A standard door is about 1.9 m² (21 ft²) and a window about 1.4 m² (15 ft²).
Paint calculator
Enter the room size, the number of doors and windows and how many coats you will apply. The calculator estimates the paint needed.
Last updated: · By Furkan Çetinkaya · About & Methodology
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Common questions
Do I need two coats?
Usually yes, especially when changing colour. Primer counts as a separate coat.
How much paint for a 4 × 4 m room?
With 2.5 m walls and two coats, roughly 7–8 litres for the walls.