Ceiling Paint Calculator
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, set up for a ceiling. The area is the easiest in the house to compute: just length × width of the room — a 4 × 5 m room has a 20 m² ceiling. There are no doors or windows to subtract, so the openings fields are preset to zero; simply type the area and pick your coats.
One coat is often enough when repainting a white ceiling that is in good condition with a dedicated ceiling paint: 20 m² at 11 m² per liter is under 2 liters, a single 2.5 L can. Fresh plaster, water stains or a color change call for two coats — about 3.7 liters in this example, so a 2.5 L can plus two 1 L cans, or a 5 L can with reserve.
Ceiling paints are formulated flatter and more drip-resistant than wall paints, and matt finishes hide surface imperfections that raking light would otherwise expose. Coverage on a previously painted, smooth ceiling sits at the good end of the range (11–12 m²/L), while textured or newly skimmed ceilings absorb more — lower the coverage figure if that is your case. 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.