Area & Volume Calculators
Core measurement tools for any project: square footage for rooms and lots, and cubic feet or cubic yards for anything sold by volume.
Square Footage Calculator
Add up rooms in feet and inches or metres. Totals in sq ft and m².
Open calculatorCubic Yard Calculator
Cubic yards from dimensions or area and depth, plus conversions.
Open calculatorCubic Feet Calculator
Volume of boxes, rooms and cylinders in ft³, m³ and litres.
Open calculator
About these calculators
Almost every material estimate starts with an area or a volume. Getting these right, and converting cleanly between imperial and metric units, avoids most ordering mistakes.
Related guides
Guide · 6 min read
How Much Mulch Do You Need?
Choosing a depth, measuring odd-shaped beds and deciding between bags and bulk.
Read guideGuide · 6 min read
How to Calculate Square Footage
Rectangles, L-shapes, triangles and circles, plus feet-and-inches conversions.
Read guideGuide · 7 min read
How to Calculate Gravel for a Driveway
Measuring, layering, compaction and converting volume to tons.
Read guideGuide · 6 min read
How Much Paint Do You Need for a Room?
Measuring walls, coverage rates, coats, ceilings and choosing can sizes.
Read guideGuide · 8 min read
How to Calculate Tile and Grout for a Bathroom
Floor and shower walls, waste for small rooms, boxes, and grout for big tiles versus mosaics.
Read guideGuide · 6 min read
How Much Soil Do You Need for a Raised Bed?
Bed volume, bags versus bulk, filling deep beds cheaply, and topping up as soil settles.
Read guideGuide · 7 min read
How to Calculate Pavers for a Patio
Pavers per square foot, laying patterns and waste, plus base gravel, sand and edging.
Read guideGuide · 7 min read
How to Estimate Drywall for a Room
Wall and ceiling area, which sheet size to buy, and why longer sheets save work.
Read guideGuide · 6 min read
Cubic Yards Explained
What a cubic yard looks like, conversions, coverage at different depths, and common ordering mistakes.
Read guideGuide · 7 min read
Metric and Imperial Measurements for DIY
US vs UK gallons, tons vs tonnes, nominal timber sizes and the conversions worth remembering.
Read guideGuide · 6 min read
How Much Paint for Ceilings, Trim and Doors
Ceiling area, trim measured by length, doors by the face, and buying the right can sizes.
Read guide