Calculator tool
How this calculator works
The result depends on the numbers you enter and the assumptions shown below.
The calculator divides total paintable area by coverage per unit and adjusts for number of coats.
Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, or security, compare the result with trusted professional guidance when needed.
Frequently asked questions
Should I buy extra paint?
Yes. A small waste buffer is useful for touch-ups and uneven surfaces.
Does it subtract windows and doors?
A later advanced mode can subtract openings from total wall area.
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