How do I use the Paint Calculator?
Enter your values in the fields and the result updates instantly as you type.
Paint Calculator
Calculate how much paint you need for walls and ceilings.
Length of the room
Width of the room
Height of walls
Standard door = 2m²
Standard window = 1.5m²
Usually 2 coats needed
Results
Wall Area
31.5 m²
Ceiling Area
12 m²
Total Area to Paint
43.5 m²
Paint Needed
8.7 L
Cans (4L)
3 cans
Formula: Paint (L) = (Wall Area + Ceiling Area) / Coverage per Liter
Frequently asked questions
What formula does this calculator use?
Paint (L) = (Wall Area + Ceiling Area) / Coverage per Liter
Can I use decimal values?
Yes. Decimal inputs are supported for most calculators. Integer-based tools use rounded integer values where appropriate.
Is this calculator free?
Yes. CalcuNimble calculators are free and optimized for fast everyday use.