Concrete volume calculator
Work out cubic metres or cubic yards of concrete for a slab, footing or pad.
Result
Concrete volume calculator
- Length and width unit
- Feet
- Thickness unit
- Inches
- Show volume in
- m³
Volume
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Enter length, width and thickness to see the volume.
Ballpark estimate, check before you buy or quote.
1 foot = 0.3048 metres and 1 inch = 25.4 millimetres exactly (international yard and pound agreement, 1 July 1959).
Estimate for planning only. This is not tax, legal, accounting or financial advice. Results depend on the figures you enter. Check all numbers, rates and rules with the official source or a qualified professional before relying on them.
How this works and common questions
About this tool
Volume is length times width times thickness. You can add an extra percent for spills and uneven ground. You type every figure.
How it works
Volume is length times width times thickness. Thickness can be in inches, millimetres, or the same unit as the length. An extra percent is applied before the result is rounded half up to 3 decimal places.
Rules
1 foot = 0.3048 metres and 1 inch = 25.4 millimetres exactly (international yard and pound agreement, 1 July 1959). A cubic yard is 27 cubic feet.
Questions
How do I find concrete volume?
Multiply length, width and thickness, then read the volume in cubic metres or cubic yards.
Should I order extra?
Many people add a margin for uneven ground and spills. Enter your own extra percent to see the new total.
Can I enter thickness in inches?
Yes. Choose inches, millimetres, or the same unit as the length and width.
Do I need an account?
No. The tools work without one. You only need to sign in to save your work.
Is what I type saved?
No. Nothing is saved unless you sign in and choose Save. Otherwise it stays on the page.
Do you show ads or sell my information?
No. We show no ads and we do not sell your information.
Is this tax or legal advice?
No. Results are estimates for planning. Check rates and rules with the official source or a qualified professional.
Sign in to save this. Your entries stay on screen.
Estimate for planning only. This is not tax, legal, accounting or financial advice. Results depend on the figures you enter. Check all numbers, rates and rules with the official source or a qualified professional before relying on them.