How to Calculate a Gravel Base
Enter the base length, width, and compacted depth. The calculator adds the selected compaction or waste allowance before converting the result to cubic yards.
Formula
Cubic yards = Length × Width × Depth ÷ 27
Density, moisture, and compaction can change actual weight.
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