Calculator collection
Gravel & stone calculators
Cubic yards and tons of gravel, pea gravel, river rock and driveway stone.
Aquarium Gravel CalculatorAquarium gravel calculator: enter tank length, width and depth to get pounds, kg, litres and bags of gravel or sand, plus tank gallons.Open calculator 
Asphalt CalculatorFree asphalt calculator. Enter length, width and compacted thickness to get tons of hot-mix asphalt, cubic yards, m³ and tonnes for driveways and lots.Open calculator Asphalt Millings CalculatorFree asphalt millings calculator. Enter driveway size and depth to get cubic yards and tons of recycled asphalt (RAP), with the FHWA density range and metric.Open calculator Crushed Concrete CalculatorFree crushed concrete calculator. Enter driveway or pad size and depth to get recycled concrete aggregate in cubic yards, tons and m³, using FHWA density data.Open calculator 
Crushed Stone CalculatorFree crushed stone calculator. Enter length, width and depth to get tons, cubic yards and m³ of #57 crushed stone, crusher run or gravel, plus 10% extra.Open calculator 
Crusher Run CalculatorFree crusher run calculator. Enter length, width and depth to get tons, cubic yards and m³ of crusher run, road base or dense-graded aggregate.Open calculator 
Driveway Gravel CalculatorCalculate tons and cubic yards of gravel for a driveway, layer by layer: base stone, #57 and crusher run top coat. Includes extra for compaction.Open calculator 
Gravel CalculatorFree gravel calculator. Enter length, width and depth to get cubic yards, tons, m³ and bags of gravel, crushed stone, pea gravel or crusher run.Open calculator Gravel Cost per TonGravel cost per ton calculator: tons for your area and depth, total and per-yard price from your quote, plus USGS 2021–2025 average prices per ton.Open calculator 
Landscape Rock CalculatorFree landscape rock calculator. Enter bed size and depth to get cubic yards, tons, m³ and 0.5 ft³ bags of decorative rock, lava rock or crushed stone.Open calculator 
Pea Gravel CalculatorFree pea gravel calculator for patios, paths and dog runs. Enter area and depth to get cubic yards, tons, m³ and 0.5 ft³ bags of pea gravel.Open calculator 
River Rock CalculatorFree river rock calculator for beds, borders and dry creeks. Enter area and depth to get cubic yards, tons, m³ and 0.5 ft³ bags of river stone.Open calculator Road Base CalculatorFree road base calculator. Enter length, width and compacted depth to get cubic yards, m³ and tons of road base, using a state DOT density you can override.Open calculator FAQ
Frequently asked questions
How do I calculate how much gravel I need?
Area in ft² × depth in inches ÷ 324 gives cubic yards. 200 ft² at 4 in is 200 × 4 ÷ 324 = 2.47 yd³. Multiply by your supplier's tons-per-yard figure to convert to tons.
How many tons are in a yard of gravel?
Loose gravel is typically about 1.4 tons per cubic yard, but it varies with stone size and moisture. Ask your supplier for their figure and enter it in the gravel calculator.
How thick should a gravel driveway be?
The UW–Madison PASER manual for gravel roads calls for a minimum gravel thickness of 6 in, and up to 10 in or more for heavy loads or poor soil.
How deep should a paver base be?
Oregon State University Extension recommends 4 to 6 in of crushed rock, thicker on soft clay or where the pavers will be driven on, placed in lifts and compacted between each.
Looking for something else? Browse all 88 calculators or start with the concrete calculator.