Use length, width and thickness for a rectangular driveway, parking area or paved section.
CONSTRUCTION CALCULATOR
Asphalt Calculator
Calculate asphalt for a driveway, parking area or paved surface in US tons or metric tonnes. Start with dimensions, a known area or volume, adjust asphalt density, combine paved areas and estimate material cost.
ASPHALT PROJECT
Project measurements
Calculate using
MATERIAL ASSUMPTIONS
Density & pricing
The default density is a planning value from the calculation engine. Replace it with a project or supplier density when available. Currency switching changes the label only; it does not perform FX conversion.
Use dimensions when you know the length, width and asphalt thickness.
LIVE PREVIEWDriveway / paved area
Calculated20 ft × 10 ft3 in thick
Illustrative geometry only — use the entered measurements and supplier specifications for ordering.ESTIMATED ORDER
—US tons
Estimated asphalt weight including the selected extra-material allowance.
Base volume—yd³ before extra
Order volume—yd³ including extra
Metric reference—tonnes to order
Surface area—ft²
Estimated material costAdd a priceOptional supplier pricing
Asphalt weight depends on density. Confirm the mix, compacted density, ordering units and supplier requirements before purchasing.
MULTIPLE PAVED AREAS
Build one combined asphalt order.
Add the current calculation to a temporary paving project, then combine driveway sections, parking areas and known asphalt volumes. The selected extra percentage is applied once to the combined base volume.
No paved areas added yet. Calculate a dimensions, known-area or known-volume estimate above, then add it here.
Paved areas0combined calculations
Base asphalt—yd³ before extra
Project order—US tons including extra
Estimated material costAdd a priceOptional supplier pricing
Project areas are temporary for this browser session. The calculator stores each area's base volume and recalculates the combined order using the current extra percentage, density and pricing assumptions.
PROJECT OUTPUT
Asphalt order summary.
Turn the current calculation or your combined paving project into a supplier-friendly order summary. Copy it to your notes or print the clean summary to save it as a PDF.
Summary uses
ScopeCurrent calculationDimensions
Base asphalt—yd³ before extra
Order asphalt—US tons including extra
Allowance5%applied once to base volume
AREA BREAKDOWN
Current calculation
SHOPPING OUTPUT
What to ask for
Asphalt mix—Current calculation
Order volume—yd³ including extra
Asphalt density145 lb/ft³current planning assumption
Estimated material costAdd a priceOptional supplier pricing
Planning estimate only. Confirm asphalt mix design, compacted density, lift thickness, ordering units, minimum loads, delivery fees and supplier requirements before ordering.
HOW IT WORKS
Use the asphalt measurements you already know.
Dimensions mode calculates a rectangular paved volume. Known area combines an existing square-foot or square-meter measurement with asphalt thickness. Known volume starts directly from cubic yards or cubic meters. All three paths use the same calculation engine, while the density converts volume into weight and the optional price converts that weight into an estimated material cost.
Base volume = Length × Width × Thickness
Order volume = Base volume × (1 + Extra %)
Order weight = Order volume × Asphalt density
Order volume = Base volume × (1 + Extra %)
Order weight = Order volume × Asphalt density
THREE INPUT PATHS
Choose the starting point that matches your project.
Start from square feet or square meters when the surface area is already known, then enter the asphalt thickness.
Start from cubic yards or cubic meters when a base asphalt volume has already been calculated elsewhere.
QUICK EXAMPLE
20 ft × 10 ft driveway at 3 in thick
With a 5% extra-material allowance and the default 145 lb/ft³ planning density, the default dimensions example is about 3.81 US tons of asphalt. Add a supplier price per ton to estimate material cost. Switching to metric converts the density and price basis so the physical project and estimated cost stay the same.