Calculate how much gravel you need in cubic yards, cubic meters and tons. Combine multiple areas, adjust density and estimate material cost for free.
Enter your measurements to see the gravel volume, weight and optional cost.
Planning estimate only. Confirm density and order quantities with your supplier. Delivery and taxes are not included.
Choose feet and inches or meters and centimeters. Enter a rectangle, a circle or a known surface area, then its depth. Add up to 20 non-overlapping areas for a path, driveway or garden project. Decimals and fractions such as 3 1/2 are accepted.
Use the loose bulk density quoted by your supplier. The starting density is an example, not a specification for every gravel. Add an optional percentage for extra material; leave it at zero when no allowance is needed.
Read the combined volume and estimated weight in metric and US units. Optionally enter your supplier’s price per metric tonne, US short ton, cubic meter or cubic yard. Download or copy the estimate with its measurements and assumptions.
A rectangle’s volume is length × width × depth. A circle’s volume is π × (diameter ÷ 2)² × depth. A known area is multiplied by its depth. Convert all lengths to the same unit first, add the volumes and multiply by 1 + extra percentage ÷ 100. Weight equals this order volume × loose bulk density.
One metric tonne is 1,000 kg. One US short ton is 2,000 lb, or 907.18474 kg. One cubic yard is 27 cubic feet, or 0.764554857984 m³. Choose the exact pricing unit from your quote; a price per ton cannot be applied directly to cubic yards.
Moisture, grading and compaction affect gravel requirements. The extra percentage is a simple order allowance, not a compaction model or a recommendation for construction depth. Material cost excludes delivery and taxes. Calculations run on your device and are cleared when you reload the page.
Measure each non-overlapping section and choose Add another area. Each section can have its own shape and depth. The calculator adds their volumes before applying the extra allowance and density. Do not include an overlapping section twice.
Convert 5 cm to 0.05 m, then calculate 10 × 4 × 0.05 = 2 m³. At an example density of 1,600 kg/m³, that weighs 3,200 kg. With 10% extra, the order estimate becomes 2.2 m³ and 3.52 metric tonnes. At $50 per metric tonne, the material cost is $176, excluding delivery and taxes.
It depends on the loose bulk density. Multiply 0.764554857984 m³ by the density in kg/m³, then divide by 907.18474 for US short tons or by 1,000 for metric tonnes. At an example density of 1,600 kg/m³, one cubic yard weighs about 1.35 US short tons or 1.22 metric tonnes.
Use the project depth specified for your application and the loose bulk density for the actual material from your supplier. This calculator does not choose a structural design, prescribe driveway layers or determine a compaction factor. If density changes by 10%, estimated weight and a weight-based material cost also change by 10%.
Switching units converts the measurements and density already entered, keeping the same physical volume and weight apart from rounding. The price and its selected pricing unit remain as entered, so you can keep using the unit on your supplier’s quote.