# Concrete Calculator

The Concrete Calculator estimates the volume and weight of concrete necessary to cover a given area.

feet
feet
inches

Our concrete calculator can help you determine how much concrete you need, the costs involved, if you require concrete bags or ready mix, a how-to formula, and the waste allowance amount.

## Definition of a concrete calculator

A concrete calculator is an automated program used to estimate the amount of concrete, in volume or weight, to fill a given area. Typically in the US concrete is sold in pound bags or by the cubic yard.

## How to calculate how much concrete is needed?

1. Determine the width, length, and depth of the area you want to concrete
2. Multiply width by length (this = Square Footage)
3. Convert depth from inches into feet by dividing by 12
4. Now multiply the square footage (width x length) by the converted depth (depth inches / 12)
5. This is the total cubic feet needed.
6. To convert into cubic yards, start by dividing cubic feet by 27

## Concrete equation

((w x l) x (d / 12)) / 27 = cubic yard
w = Width, l = length, d = depth

## Example

Mr. Calculate needs a slab of concrete covering 20 feet by 20 feet at 6 inches deep.

((20 x 20) x (6 / 12)) / 27 = 7.407 cubic yards

## Popular square footage areas

Disclaimer: All calculators, tools, and results featured on calculateconvert.com are to be finalized and not be considered a quotation or binding contract.
Proofs and formulas are provided as references.