Gravel Calculator: Cubic Yards, Tons and Cost

Calculate your quantities

Enter your measurements below. Change the example allowance, product information and price to match your project.

Enter measurements and select Calculate.

Prices use your chosen currency. A zero price leaves cost at zero. Material estimates exclude labor, tax, delivery and accessories. Enter decimal feet, not feet-and-inches notation. Decimal point or comma accepted; omit thousands separators.

How to use this gravel calculator

Enter the supplier's bulk density for your gravel. The 100 lb/ft³ default is a worked assumption, not a universal material density. Compaction, moisture and grading change delivered quantities; match your depth and density basis to the supplier's quote.

Measure the relevant area or volume using the units shown beside each input.
Replace example product values with the supplier's yield, coverage, density or pack quantity where applicable.
Set the extra allowance explicitly. Enter zero when you want the geometric quantity without an allowance.
Select Calculate, then compare the unrounded purchasing basis with whole bags, boxes or packs where displayed.

Formula

ft³ = length × width × depth / 12. Order ft³ = ft³ × (1 + extra / 100). Weight in pounds = order ft³ × bulk density. US short tons = pounds / 2000.

Worked example

A 10 × 10 ft bed at 3 in depth needs 25 ft³ geometrically. With 10% extra and an assumed density of 100 lb/ft³, the estimate is 27.5 ft³ = 1.019 yd³ and 1.375 US short tons.

Six calculated examples

Only the first length changes in this table. All other inputs use the calculator's reset values shown above. These are mathematical scenarios, not measured supplier quotes.

gravel quantity examples
First length	Calculated quantities
5 ft	Geometric volume (ft³): 12.5; Order volume (ft³): 13.75; Order volume (yd³): 0.509; Order volume (m³): 0.389; US short tons: 0.688; Metric tonnes: 0.624
8 ft	Geometric volume (ft³): 20; Order volume (ft³): 22; Order volume (yd³): 0.815; Order volume (m³): 0.623; US short tons: 1.1; Metric tonnes: 0.998
10 ft	Geometric volume (ft³): 25; Order volume (ft³): 27.5; Order volume (yd³): 1.019; Order volume (m³): 0.779; US short tons: 1.375; Metric tonnes: 1.247
12 ft	Geometric volume (ft³): 30; Order volume (ft³): 33; Order volume (yd³): 1.222; Order volume (m³): 0.934; US short tons: 1.65; Metric tonnes: 1.497
15 ft	Geometric volume (ft³): 37.5; Order volume (ft³): 41.25; Order volume (yd³): 1.528; Order volume (m³): 1.168; US short tons: 2.063; Metric tonnes: 1.871
20 ft	Geometric volume (ft³): 50; Order volume (ft³): 55; Order volume (yd³): 2.037; Order volume (m³): 1.557; US short tons: 2.75; Metric tonnes: 2.495

Frequently asked questions

Is a ton always 2000 pounds?

This tool reports US short tons (2000 lb) and metric tonnes separately. Confirm your supplier's quotation unit.

Is pea gravel the same density as crushed stone?

Do not assume so. Enter bulk density for the actual product.

Does the extra percentage calculate compaction?

No. It is a user-defined allowance, not a soil or aggregate compaction model.

Units and calculation limits

One foot is 0.3048 meters; one cubic yard is 27 cubic feet. Calculations retain precision until display; whole-package quantities are rounded up. Outputs estimate quantities from your measurements and assumptions. Confirm product coverage and units before ordering.