How to Calculate Concrete
Enter the project length, width, and thickness. The calculator converts the measurements to feet, calculates cubic feet, then divides by 27 to return cubic yards.
Formula
Cubic yards = Length × Width × Thickness ÷ 27
Before Ordering
Confirm the slab thickness, supplier minimums, product yield, and an appropriate waste allowance before purchasing.
Calculation Standards
This tool uses documented formulas and high-precision internal values. Displayed results may be rounded for readability. Review the assumptions and verify important decisions with a qualified professional.
Read our calculation methodology