Paint Calculator
Enter your room dimensions, number of coats, doors, and windows. Get exact litres or gallons needed and how many cans to buy.
Unit
Room dimensions (feet)
Based on about 400 sq ft per gallon (10 m² per liter) per coat, minus ~20 sq ft per door and ~15 sq ft per window. Actual coverage varies by paint brand and surface porosity.
Questions about this
- What is a standard ceiling height?
Eight feet (2.44 m) is the standard ceiling height in most existing American homes, and nine feet is now common in new construction. Building code sets the floor rather than the norm: the International Residential Code requires at least seven feet of clear height in habitable rooms.
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Related AI features
See how the room could look before you buy a single can.
Preview with AI