How to use this calculator
Estimate concrete volume for simple rectangular or round footings.
How the calculation works
- Enter the project dimensions or quantities.
- Choose the unit and optional waste factor where relevant.
- Review the rounded material estimate and supporting details.
Formula
Rectangular volume = width x length x depth x quantity. Round volume = pi x radius squared x depth x quantity.
Example
Four 1.5 ft by 2 ft by 1 ft rectangular footings need about 0.44 cubic yards before waste.
Understanding your result
Use the output as a practical starting point, then review it before using it in an important workflow.
Assumptions and limitations
- This estimates concrete quantity only. It does not size footings or provide structural advice.
Frequently asked questions
Does this require an account?
No. The core tool works without creating a Tool2Do account.
Is my input included in share links or analytics?
No. Tool2Do share actions use the tool page URL and safe metadata, not private values or uploaded files.