Concrete Calculator
Fill in the values and the answer updates as you type.
How the Concrete Calculator works
Volume = length × width × thickness. Order about 5–10% extra for spillage.
Inputs and results
The Concrete Calculator takes 3 inputs and gives 2 results.
What you enter
- Length (m) — starts at 4.
- Width (m) — starts at 3.
- Thickness (cm) — starts at 10.
What you get
- Volume (m3)
- Volume (cubic yards)
Example: Concrete Calculator with the starting values
With length 4 m, width 3 m and thickness 10 cm, the calculator returns:
| Volume (m3) | 1.2 |
|---|---|
| Volume (cubic yards) | 1.57 |
Change any value above and the results update straight away.
Concrete Calculator FAQ
How do I use the Concrete Calculator?
Enter length, width and thickness in the fields, then read volume (m3) and volume (cubic yards) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Concrete Calculator calculate?
Concrete volume for a slab. It returns volume (m3) and volume (cubic yards) from the 3 values you provide.
What values does the Concrete Calculator start with?
It opens with length 4 m, width 3 m and thickness 10 cm so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Concrete Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Concrete Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.