Asphalt Calculator: The Complete Guide
Estimate how much asphalt your paving project needs. Enter the length, width, and thickness to get the weight in tonnes and US tons of hot-mix asphalt.
Who the Asphalt Calculator is for
Contractors and homeowners paving a driveway, path, or lot who need an asphalt tonnage estimate.
How to use the Asphalt Calculator
- Type your values into the fields above — pick your currency or units where the calculator offers them.
- Results update automatically as you type; there's no submit button and nothing is sent to a server.
- Adjust any input to compare scenarios, then copy the result with a single click.
How it works
Volume = length × width × thickness. Weight = volume × density, using about 2,322 kg/m³ for compacted hot-mix asphalt. US tons = tonnes × 1.102.
Features
- Tonnes and US tons
- Volume in m³ and yd³
- Imperial or metric
- Includes a waste tip
Estimating asphalt
Asphalt is sold by weight, so you need the volume of your paving area multiplied by the material's density. Hot-mix asphalt compacts to roughly 2,322 kg per cubic metre. Order about 10% extra to account for compaction, edges, and waste, and confirm the mix density with your supplier.