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Estimate gravel volume in cubic yards for a rectangular driveway, path, or bed using feet, inches, and an explicit extra allowance.
Your result
Enter your values and select Calculate. Your result stays on this device.
Cubic yards = length × width × (depth in inches ÷ 12) ÷ 27, then apply the chosen allowance.
The area and depth are uniform. Compaction, aggregate density, base preparation, drainage, supplier minimums, and truck capacity are not modeled.
Use this gravel calculator to translate a measured rectangular area and installed depth into the cubic-yard unit commonly used by U.S. landscape suppliers.
Use case
Convert project length, width, installed depth, and extra allowance into cubic yards before confirming aggregate density and delivery requirements.
Estimate a rectangular gravel project in cubic yards from feet, inches, and an allowance.
Build a reliable scenario
Gravel Calculator helps you check a specific home improvement question with figures that apply to you. Estimate gravel volume in cubic yards for a rectangular driveway, path, or bed using feet, inches, and an explicit extra allowance. Convert project length, width, installed depth, and extra allowance into cubic yards before confirming aggregate density and delivery requirements. Estimate a rectangular gravel project in cubic yards from feet, inches, and an allowance. The page keeps the method and limits visible so the result can be understood, compared, and checked instead of treated as an unexplained answer.
Prepare Length, Width, Depth and Extra allowance. Measure project length and width in feet. Choose the planned installed depth in inches. Add an allowance for grading and measurement variation. Confirm compaction, aggregate type, weight, and delivery minimum with the supplier. Keep units, dates, currency, and time periods consistent.
The stated method is: Cubic yards = length × width × (depth in inches ÷ 12) ÷ 27, then apply the chosen allowance. Change one assumption at a time to see which input drives the result, then compare scenarios on the same basis.
The area and depth are uniform. Compaction, aggregate density, base preparation, drainage, supplier minimums, and truck capacity are not modeled. Check the input and rounding, then calculate again.
Source and update
Last reviewed: 2026-08-22
NIST Guide for the Use of the International System of UnitsMultiply length by width by depth in feet, then divide cubic feet by 27.
Many aggregates compact. The amount depends on material and site conditions, so ask the supplier or installer.
No. Converting volume to weight requires the specific aggregate density and moisture condition.
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Clear calculation guide
This free Gravel Calculator keeps the values and the calculation method visible instead of returning an unexplained number. Estimate gravel volume in cubic yards for a rectangular driveway, path, or bed using feet, inches, and an explicit extra allowance. Use it to check a scenario with the figures that apply to you.
Start by checking units, dates, decimal places, and the option you selected. Use this gravel calculator to translate a measured rectangular area and installed depth into the cubic-yard unit commonly used by U.S. landscape suppliers. The stated mathematical method is: Cubic yards = length × width × (depth in inches ÷ 12) ÷ 27, then apply the chosen allowance.
Change one assumption at a time to understand what moves the result, then keep any final record or institution-specific rule separate from the arithmetic. The area and depth are uniform. Compaction, aggregate density, base preparation, drainage, supplier minimums, and truck capacity are not modeled. Hesaplayın is a clear, browser-based calculator for checking the maths behind your decision.