ChaseDesk. Concrete Calculator Questions? hello@chasedesk.com
Free material estimator

How much concrete do you need?

Enter the dimensions of your pour and get the approximate ready-mix volume, bag count and a sensible waste allowance.

Works for common poursSlabs, pads, footings and round bases.
1. Describe the pour

Your measurements

Updates live
10% recommended

5% for precise forms · 10% for a normal residential pour · 15% for rough or uneven ground.

Use feet for length, width and height. Use inches for thickness or depth. Add separate sections when thickness changes.

A quick rule

Order a little more than the exact math.

Uneven ground, spillage and forms that are not perfectly level can eat into the estimate. The calculator adds your chosen allowance, but it does not replace a supplier’s measurement or the product instructions.