Measure first
Measure each section separately, keep the same unit system throughout, and split irregular spaces into simple shapes when needed.
DIYGAUGE CALCULATORS
Measure & Plan
Measure rooms, walls, ceilings, volume, slope and core project dimensions.
Measure & Plan
Square Footage Calculator
Calculate floor or surface area from length and width.
Measure & Plan
Wall Area Calculator
Calculate the combined area of four room walls and subtract openings.
Measure & Plan
Cubic Feet Calculator
Calculate cubic volume from length, width and depth or height.
Measure & Plan
Cubic Yard Calculator
Convert project dimensions into cubic yards of material.
Measure & Plan
Slope Calculator
Calculate slope percentage, angle and rise-over-run ratio.
Measure & Plan
Pool Volume Calculator
Calculate pool water volume in gallons or litres.
BETTER INPUTS, BETTER ESTIMATES
Plan Measure & Plan projects with fewer surprises
Establishing room, wall, ceiling, slope and volume measurements before choosing materials.
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 these dimension calculators as the starting point, then send the measured area, volume or slope into the relevant material calculator.
One estimating standard across DIYGaugeSee how units, waste, rounding and purchase quantities are handled.View methodology →