Calculate asphalt tonnage from area, compacted thickness and mix density. Combine multiple areas, compare metric and US tons, and estimate material cost.
Enter the paving dimensions, compacted thickness and mix density to estimate asphalt tonnage.
Use the specified compacted thickness and mix density. Confirm quantities with your supplier. Delivery, laying and taxes are not included.
Compacted thickness reference: Minnesota Asphalt Pavement Association
Choose feet and inches or meters and centimeters. Enter a rectangle, circle or known surface area. Use the specified finished thickness after compaction. Add up to 20 sections for different areas or layers, counting each layer only once. Decimals and fractions such as 2 1/2 are accepted.
Use the compacted density for the actual asphalt mix from your supplier or project specification. The starting values of 150 lb/ft³ in US units and 2,400 kg/m³ in metric units are editable examples, not mix specifications. Add an extra allowance only if needed; this is not an automatic compaction factor.
See tonnage before extra and the total including your allowance, together with volume and weight in both unit systems. Enter your quoted price per metric tonne, US short ton, cubic meter or cubic yard. Copy or download the estimate. Material cost excludes delivery, laying and taxes.
Volume in m³ = surface area in m² × compacted thickness in cm ÷ 100. Metric tonnes = volume in m³ × compacted density in kg/m³ ÷ 1,000. Sum all section volumes, then apply 1 + extra percentage ÷ 100 once. The same allowance applies to volume, weight and the material cost.
US short tons = surface area in ft² × compacted thickness in inches × density in lb/ft³ ÷ 24,000. This divides inches by 12 and pounds by 2,000. A US short ton is 907.18474 kg; it differs from a 1,000 kg metric tonne. Choose the exact pricing unit on your supplier’s quote.
This calculator uses the volume of the planned compacted layer. Do not combine a loose laying thickness with a compacted density. It does not select a pavement design, prescribe a layer thickness or determine a compaction factor. Site levels, mix properties and supplier order increments may change the quantity to order.
At an example density of 150 lb/ft³, calculate 20 × 10 × 3 × 150 ÷ 24,000 = 3.75 US short tons. With 5% extra, the estimated order is 3.9375 US short tons. At an example price of $100 per US short ton, the material cost is $393.75 before delivery, laying and taxes.
The compacted volume is 100 × 0.05 = 5 m³. With an example density of 2,400 kg/m³, the weight is 12 metric tonnes. Adding 5% extra gives 5.25 m³ and 12.6 metric tonnes. At 80 currency units per metric tonne, the material cost is 1,008 currency units. These are example assumptions, not a supplier quote.
Use the compacted density of the specified mix supplied by the producer or project documentation. Density varies with the mix and its condition. A 10% change in density changes the calculated tonnage and a weight-based material cost by 10%, while the geometric volume remains the same.
No. The percentage simply increases the calculated quantity. The base calculation already uses finished compacted thickness and compacted density. Do not use the extra percentage to infer loose laying thickness or replace a project-specific compaction requirement.
Yes. Add a section for each area or layer and enter its own compacted thickness. For two layers over the same area, enter each layer thickness separately rather than entering the full combined thickness twice. One density applies to the entire estimate; calculate mixes with different densities separately.
No. It covers only material at the price and unit you enter. Delivery, preparation, laying, equipment, labor and taxes are excluded. A price per ton cannot be used as a price per cubic yard. Switching measurement units converts dimensions and density but retains the selected pricing unit.