Concrete Calculator

Calculate concrete volume, weight, and cement bags easily

Enter Dimensions

How This Concrete Calculator Works

The calculator multiplies length, width, and thickness to get concrete volume. It then estimates weight and the number of cement bags needed based on standard concrete density values.

Frequently Asked Questions

How much concrete do I need for a slab?

For slabs, multiply length × width × thickness. A common slab thickness is 10 cm (4 inches).

How many cement bags are in 1 cubic meter of concrete?

On average, 1 cubic meter of concrete requires about 8 bags of 50kg cement or 16 bags of 25kg cement.

Should I order extra concrete?

Yes. It is recommended to add 5–10% extra concrete to account for waste and uneven ground.