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See all 46 calculators →Mulch Calculator
Work out exactly how many cubic yards or bags of mulch you need for any bed, at any depth.
Concrete Calculator
Calculate cubic yards of concrete and the exact number of bags for slabs, footings, columns and post holes.
Gravel Calculator
Calculate cubic yards and tons of gravel for paths, patios, drainage and base layers.
Topsoil Calculator
Find how many cubic yards, tons or bags of topsoil you need to fill, level or top-dress an area.
Paver Calculator
Count the pavers you need for any patio, path or driveway — by paver size, with a waste allowance.
Patio Calculator
Get a complete paver patio material list: pavers, base gravel, bedding sand, joint sand and edging.
How it works
Measure your area
Length and width in feet, or the diameter of a circle. Awkward shape? Break it into rectangles and add them up.
Pick your depth or product
Every calculator defaults to the conventional figure for the job, and tells you why in the assumptions.
Order with confidence
You get cubic yards, tons, bag counts and cost — so you can compare a bulk delivery against bags before you buy.
Why trust these numbers?
Every calculator shows its working. Each page lists the material density, coverage rate or bag yield it used, and where that figure comes from — so you can check it against your supplier's quote instead of taking a black box on faith.
Read how we calculate →- No account needed
- Nothing to sign up for and nothing saved. Your measurements stay in your browser.
- Imperial and metric
- Switch between feet and metres at any point without re-typing anything.
- Shareable results
- Copy a link that reopens the calculator with your numbers already filled in.
- Built for the yard
- Fast on a phone with one bar of signal and muddy hands.