UTILITIES · FREE TOOL
Concrete volume calculator
Estimate rectangular concrete volume and an explicit waste allowance.
Your inputs
Enter your values, then calculate.
Decimal-point numbers; displayed rounding does not change internal values. Calculations stay on this device.
YOUR RESULT
Make the numbers clear.
Save calculation JSON ↓Calculation breakdown
Scroll sideways to see every column. You can also focus the table and use the arrow keys.
How this calculation works
Volume=length×width×depth. Enter depth in the same selected unit as length and width; for a4-inch depth in feet use4÷12. Add the waste percentage, then convert cubic meters to cubic yards using exactly0.764554857984m³/yd³. Not a structural, mix-design or bag-yield calculator.
Check the assumptions
Use the stated units and conventions. This tool supports the workflow described here; it does not infer missing information or outside rules.