paint quantity, surface-area and project-cost calculators for rooms and walls
Plan paint before you buy it
Calculate wall area, paint volume, coats, waste allowance and project cost from your own measurements and product coverage.
Tools
Wall Area Calculator
Calculate total paintable wall area after subtracting doors and windows.
Open →ToolsPaint Litres Calculator
Estimate litres from area, number of coats, coverage and waste allowance.
Open →ToolsPaint Cost Calculator
Turn the required paint volume into an estimated material cost.
Open →ToolsCeiling Area Calculator
Calculate rectangular ceiling area from length and width.
Open →ToolsPaint Can Count
Estimate how many equal-size cans are needed for a required volume.
Open →Guides
How to measure a room for paint
A reliable paint estimate starts with surface area rather than floor area.
GuidesCoverage and coat assumptions
Coverage and coat count drive the result more than almost any other input.
GuidesChoosing a waste allowance
A waste allowance is a planning buffer, not a rule.
GuidesBuild a paint project budget
Paint is only one line in the project budget.
GuidesCommon paint-estimating mistakes
Most errors come from mixing area, volume and product coverage.