Paint Calculator for One Wall
Work out how many liters of paint a room, wall, ceiling or facade needs: wall area from dimensions or direct input, minus doors and windows, times coats — with can sizes to buy.
Processed entirely in your browser — nothing you enter here is ever uploaded.
Result
About this tool
This page opens the paint calculator in direct-area mode for a single wall — the accent-wall scenario. The area is just width × height: a typical 4 m wall under a 2.7 m ceiling is 10.8 m². The door and window deductions are preset to zero; if your wall has an opening, set the count and the standard sizes (1.9 m² per door, 1.4 m² per window) are taken off.
At two coats and 11 m² per liter, a 10.8 m² wall needs right around 2 liters — a single 2.5 L can covers it with a sensible reserve for touch-ups. This is worth knowing before you shop, because the step up to a 5 L can is wasted money and shelf space for a one-wall job.
Accent walls are usually darker or more saturated than the surrounding paint, and deep colors over a light base often need a third coat (or a tinted primer) for an even finish — one extra coat on one wall is cheap, so set coats to 3 if in doubt. Keep the leftover sealed and labeled with the room and color code; retouching from the same can is invisible, retouching from a new batch rarely is. Everything is calculated locally in your browser.
Example. A 12 square meter wall, no doors or windows, one coat, and coverage of 11 square meters per liter returns 1.1 liters.
Limit. Each door is subtracted as 1.9 square meters and each window as 1.4 square meters, and can sizes are only 10, 5, 2.5, and 1 liter.