Enter the area and choose the job. We’ll set a practical depth and tell you how much gravel to order.
Volume is area multiplied by depth. Weight is that volume multiplied by the material's density.
volume = area × depth
tons = volume (cu ft) × 105 lb/cu ft ÷ 2000
order = volume × 1.1Density used: 105 lb per cubic foot. Crushed stone / driveway gravel, typical 100–115 lb/ft³ dry. Actual delivered weight varies with moisture and stone size, so treat tonnage as an estimate and confirm with your supplier.
The recommended order adds 10% on top. Material settles, ground is never perfectly flat, and a second delivery costs far more than a little extra gravel.
Bag count assumes 0.5 cu ft bags, rounded up to whole bags.
Both are normal and suppliers quote either. Bulk gravel is usually sold by the ton at the quarry and by the cubic yard at landscape suppliers. This calculator gives you both figures, so you can order in whichever unit your supplier uses without doing the conversion yourself.
About 114 sq ft at 2 in deep, or roughly a 10 ft x 11 ft area. At 4 in deep it drops to about 57 sq ft. Use the coverage tool above to check any depth — that is what it is for.
54 bags, if the bags are the common 0.5 cu ft size, because there are 27 cubic feet in a cubic yard. That is why bulk delivery is far cheaper than bags for anything bigger than a small path.
4 to 6 in for a new driveway, built up in layers and compacted as you go. Topping up an existing driveway takes about 2 in. Go deeper if the ground underneath is soft or heavy vehicles use it.
Ground is never perfectly flat, gravel settles into the soil beneath it, and some is lost in handling. A 10% overage covers that. If you are compacting the gravel, tick the box — compacted gravel needs about 20% more loose material to finish at your target depth.