Measure first
Measure only the surfaces you plan to finish and deduct doors, windows or other openings when the calculator provides those fields.
DIYGAUGE CALCULATORS
Paint & Walls
Estimate paint, primer, wallpaper, wall panels, trim and finishing materials.
Paint & Walls
Paint Calculator
Estimate paint quantity and cost from a known surface area, coats and product coverage.
Paint & Walls
Primer Calculator
Estimate primer quantity using surface dimensions, coats and product coverage.
Paint & Walls
Wallpaper Calculator
Estimate wallpaper rolls from wall dimensions and roll coverage.
Paint & Walls
Wall Panel Calculator
Estimate wall panels or sheets with a configurable waste allowance.
Paint & Walls
Trim & Baseboard Calculator
Estimate baseboard plus door and window casing for a room.
BETTER INPUTS, BETTER ESTIMATES
Plan Paint & Walls projects with fewer surprises
Paint, primer, wall covering, panel and trim projects where coverage and openings affect the purchase quantity.
Use project-specific values
Where a calculator asks for coverage, yield, spacing, density, package size or price, use the value from the actual product or quote whenever possible.
Verify before ordering
Use the coverage printed on the exact product you plan to buy; porous surfaces, patterns and multiple coats can materially change the result.
One estimating standard across DIYGaugeSee how units, waste, rounding and purchase quantities are handled.View methodology →