Material estimators / US units
Know how much to buy before you go.
Concrete, soil, drywall and pavers. Type your dimensions, get the quantity instantly. No sign-up, no waiting.
- Length
- 12 ft
- Width
- 10 ft
- Thickness
- 4 in
Volume
1.48yd³
40.00 ft³ before any waste allowance
Pick the job.
Get the number.
01
Concrete slab
Cubic yards for patios, pads and footings, with a diagram of what you entered.
yd³ · ft³
02
Concrete bags
How many bags, by bag size.
bags
03
Topsoil
Yards of soil for a bed or lawn.
Coming soon
04
Drywall
Sheets for walls and ceilings.
Coming soon
05
Pavers
Count and pallets for a patio or path.
Coming soon
Show your work
Worked example, line by line.
Every calculator page shows its formula and a worked example, so you can check the math yourself.
| Step | Value | Unit |
|---|---|---|
| Length | 12.00 | ft |
| Width | 10.00 | ft |
| Thickness (in ÷ 12) | 0.33 | ft |
| Volume | 40.00 | ft³ |
| Volume ÷ 27 | 1.48 | yd³ |
Good to know
Results are estimates for planning purchases. Order a little extra, and check local codes and your supplier’s specs for structural work.