Asphalt CalculatorLive

Units:

Calculate asphalt tonnage, volume, coverage, and cost for driveways, parking lots, roads, and repairs. Live 3D preview updates as you type.

Dimensions
e.g. 40 ft for a standard driveway Enter a positive value
e.g. 12 ft for one car lane Enter a positive value
Driveways: 2–3 in; roads: 4–6 in Enter a positive value
Material & Options
Selects density automatically
Covers cuts, joints, compaction loss
Typical range: 110–155 lb/ft³ Enter density between 80–200 lb/ft³
Leave blank to skip cost estimate
Multi-layer multiplies tonnage
Results
Asphalt needed (base)
— tons
— metric tonnes
With 5% waste buffer —
Volume (cubic yards) —
Volume (cubic feet) —
Volume (cubic meters) —
Coverage area —
Sq ft per ton (coverage rate) —
Density used —
Live 3D Preview
L: —
W: —
T: —
A: —
Quick Reference
Recommended thickness
Driveway (residential) 2–3 in
Parking lot 3–4 in
Road / highway 4–6 in
Patch / repair 1.5–2 in
Overlay on existing 1–2 in
More information:

How to use this calculator

  1. Enter dimensions — length, width, and thickness of your paving area. Toggle between Imperial (ft/in) and Metric (m/mm) at the top.
  2. Choose asphalt type — the calculator automatically sets the correct density. Select "Custom density" to enter your own value.
  3. Set waste buffer — 5% is standard for machine paving. Use 8–10% for irregular shapes, curves, or manual application.
  4. Add price per ton (optional) — enter your supplier's quote to get an instant material cost estimate.
  5. Select layers — multi-layer projects (base + surface) multiply tonnage proportionally.
  6. Results update live — no need to click Calculate; all outputs update as you type.
  7. Download PDF report — generates a branded Concrete-Depot.com report with all inputs, results, the 3D shape, and a timestamp.
Results are estimates based on standard asphalt density. Actual tonnage may vary by mix design, supplier, and compaction conditions. Always verify with your paving contractor.

Formula used

Volume (ft³) = Length (ft) × Width (ft) × Thickness (ft)

Thickness in inches is divided by 12 to convert to feet.

Weight (lb) = Volume (ft³) × Density (lb/ft³)

Default density: 145 lb/ft³ for Hot Mix Asphalt (HMA). Adjustable per mix type.

Tons (US short) = Weight (lb) ÷ 2000

1 US short ton = 2,000 lb. Results also shown in metric tonnes (1 tonne = 2,204.62 lb).

With waste = Base tons × (1 + waste% ÷ 100)

Recommended minimum: 5% for machine paving, 8–10% for hand/irregular work.

Cost ($) = Tons × Price per ton

Material cost only. Does not include labor, equipment, base preparation, or hauling.

Volume (yd³) = Volume (ft³) ÷ 27

1 cubic yard = 27 cubic feet. 1 cubic meter = 35.3147 cubic feet.

Asphalt type guide

Type Density Best for Notes
Hot Mix Asphalt (HMA) 145 lb/ft³ All traffic types, driveways, roads Most common; mixed and applied hot (275–325°F)
Warm Mix Asphalt (WMA) 140 lb/ft³ Seasonal paving, low-emission projects Lower production temperature; longer haul distances
Stone Matrix Asphalt (SMA) 138 lb/ft³ High-traffic roads, heavy loads Durable, rut-resistant; higher cost
Open-Graded Friction Course 125 lb/ft³ Drainage, noise reduction Permeable; not for base layers
Cold Mix Asphalt 120 lb/ft³ Temporary repairs, remote sites Applied cold; lower durability
Recycled Asphalt Pavement (RAP) 148 lb/ft³ Eco-friendly repaving, base layers Slightly denser; cost-effective and sustainable
Recommended thickness by project type
Residential Driveway
2–3 inches
On 4–6″ gravel base
Parking Lot
3–4 inches
On 6–8″ crushed stone
Road / Highway
4–6 inches
Multi-layer construction
Patch / Repair
1.5–2 inches
Match existing surface
Overlay
1–2 inches
Over prepared surface
Bike Path / Trail
2 inches
Compacted stone base

Frequently asked questions