Construction · Material planning

Asphalt Tonnage Calculator

Convert asphalt area, thickness and mix density to short tons or metric tonnes. See the tonnage formula and distinguish finished from loose material.

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Your project

US & metric

Example values are filled in. Replace them with your measurements.

ft
ft
sq ft

Add other measured sections without counting overlaps twice.

sq ft
in
%

An editable purchasing margin, not a measured compaction rate.

lb / cu yd

Optional. Enter the density of this product to estimate weight.

$ / cu yd
$

Enter 0 if included. Bulk cost remains blank until delivery is specified.

Enter your measurements

The calculation

Volume = net area × depth × (1 + extra ÷ 100). Weight = volume × supplier density.

  • Enter your supplier’s bulk density to show weight. Volume alone cannot determine tons.
  • 10% extra is included once. Confirm supplier minimums and delivery increments.

Saved on this device

Only estimates you choose to save are stored here.

    Measure with a little context

    How to use this asphalt tonnage calculator

    Enter your supplier’s density to convert volume into weight. A US short ton is 2,000 lb; a metric tonne is 1,000 kg.

    Use density and dimensions that describe the same material state. A loose mix density cannot be substituted for compacted density without checking the conversion.

    Volume = net area × depth × (1 + extra ÷ 100). Weight = volume × supplier density.

    A worked example

    With the example values shown below, the calculated result is 0.978 cu yd. These are demonstration inputs, not installation specifications.

    View the example measurements
    • Length / circle diameter: 12 ft
    • Width: 8 ft
    • Material depth: 3 in
    • Extra allowance: 10 %

    From estimate to order

    Whole packages and pieces round up; measured lengths, areas and volumes keep full precision during calculation. Match the product dimensions and units to your quote, and check cuts, minimum orders and delivery before purchasing.

    Read our formulas, rounding rules and limitations →

    Asphalt tonnage planning questions

    What is the asphalt tonnage formula?

    In US units, tons = area in sq ft × depth in inches ÷ 324 × density in lb per cubic yard ÷ 2,000. In metric units, tonnes = area in m² × depth in meters × density in kg per m³ ÷ 1,000. Apply a chosen allowance separately.

    Why is the asphalt tonnage result blank?

    A weight estimate requires supplier density. Without it, the tool can calculate volume but cannot determine tons. Confirm whether the density describes compacted or loose material and whether the order uses US short tons or metric tonnes.

    Can I convert square feet of asphalt directly to tons?

    Square feet alone describe area. You also need thickness and density. As a unit example, 1,000 sq ft at 2 inches occupies 6.17284 cubic yards. At an illustrative density of 3,600 lb/cu yd, that is about 11.111 US short tons before allowance. Neither the thickness nor density is a project specification.

    Calculation notes updated . Formulas, sources and limitations.