Gravel calculator: tons, and how many trucks.
Type length, width and depth. Get tons and truckloads as you type.
Wet or well-graded base weighs more. Use your quarry's figure if you have it.
The gravel formula
tons = length (ft) × width (ft) × depth (in) ÷ 12 × 104 lb/ft³ ÷ 2,000
Worked example for a driveway, pad or road base: 100 ft × 12 ft at 4 in is 15.6 cubic yards and 21.8 tons with 5% extra, or 2 loads.
Gravel is sold by the ton. Base courses are usually 4 to 8 in; a driveway top dressing 2 to 3 in.
Gravel by the square foot
| Depth | 100 sq ft (10 × 10) | 1,000 sq ft |
|---|---|---|
| 2 in | 0.86 t | 8.6 t |
| 4 in | 1.73 t | 17.3 t |
| 6 in | 2.59 t | 25.9 t |
| 8 in | 3.46 t | 34.6 t |
No waste added in the table. Weight used: 2,800 lb per cubic yard. About 2,800 lb/yd³ (1.4 tons per cubic yard), a common quarry estimating figure; spec MAT3.js.
Save it to a job. Dozer checks it against what's laid.
Saved estimates go on the site. Dozer adds up the haul tickets and the paver's tons each night and tells you if you're running over.
- Estimate vs. tons laid, every night
- Haul tickets read from a photo
- Overrun flagged before the next order
- Every estimate kept with the job
LIVE 412 t laid · estimate 383 t Photo is an AI-generated stand-in, not a customer site.
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Questions crews ask
How do I calculate gravel tons?
Multiply length by width in feet, then by depth in inches divided by 12. That's cubic feet. Multiply by 104 lb per cubic foot and divide by 2,000 for tons. Add 5% for waste.
How much does a cubic yard of gravel weigh?
About 2,800 lb, or 1.40 tons. Wet or well-graded base weighs more. Use your quarry's figure if you have it.
How many tons for 100 by 12 ft at 4 in?
About 21.8 tons with 5% extra, or 2 truckloads at 15 tons a load.
How much gravel fits in a dump truck?
This calculator uses 15 tons a load. A tandem dump usually hauls 10 to 15 tons, a tri-axle 15 to 20 and a semi end-dump about 22 to 25; the legal weight on your roads decides.
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