Asphalt Tonnage Calculator
Convert paved area and compacted thickness into tons of hot-mix asphalt. Enter square feet or square yards, lift thickness, and compacted density (often 145 lb/ft³). The same formula is shown below so you can figure asphalt tonnage by hand, then check the plant order with a waste factor.
Enter your values, then press Calculate.
How to calculate
Enter the paved area and the compacted thickness. Area may be square feet or square yards (1 sy = 9 sf). Thickness is usually inches on the typical section. Use compacted mix density from the plant or 145 lb/ft³ when the mix sheet is not on hand. The calculator converts thickness to feet, finds cubic feet, multiplies by density, then divides by 2,000 lb per ton. That is how to figure asphalt tonnage from a takeoff.
Formula
Volume (ft³) = area (ft²) × thickness (ft). Thickness (ft) = inches ÷ 12. Weight (lb) = volume × compacted density (lb/ft³). Tons = weight ÷ 2,000. Cubic yards of compacted mix = ft³ ÷ 27. Waste multiplies the neat tonnage for the order quantity.
Common use cases
- Parking lot and driveway overlays
- Street patching and trench restoration
- Plant order checks against area takeoffs
- Comparing 1.5 in vs 2 in lifts
- Square feet or square yards to tons
Assumptions
- Area is plan area of the paved surface, already in square feet or square yards.
- Thickness is compacted lift thickness, not the loose depth before rolling.
- Default 145 lb/ft³ is a common compacted hot-mix unit weight, not a job mix formula.
- Waste applies to the order quantity only. Neat tons stay on the takeoff.
Limitations
- Does not convert millings, RAP, or emulsion. Those are different densities.
- Does not design pavement section or choose PG binder.
- Does not apply a plant’s conversion from loose tons to compacted tons unless you change density.
- Coverage tables on this page are for 145 lb/ft³ only; a lighter mix covers more square feet per ton.
Worked examples
1000 sf at 2 inches and 145 pcf
1,000 sf × 2 in compacted at 145 lb/ft³ is the textbook parking-stall check: 12.08 neat tons. Add waste only if you are writing a plant order, not if you are checking a neat takeoff.
1. Convert thickness to feet
2 in ÷ 12 = 0.1667 ft
2. Volume in cubic feet
1,000 ft² × 0.1667 ft = 166.6667 ft³
3. Weight in pounds
166.6667 ft³ × 145 lb/ft³ = 24,166.6667 lb
4. Convert to tons
24,166.67 lb ÷ 2,000 = 12.0833 tons
5. Apply waste factor
12.0833 × (1 + 0%) = 12.0833 tons
1 square yard at 2 inches and 145 pcf
1. Convert thickness to feet
2 in ÷ 12 = 0.1667 ft
2. Volume in cubic feet
9 ft² × 0.1667 ft = 1.5 ft³
3. Weight in pounds
1.5 ft³ × 145 lb/ft³ = 217.5 lb
4. Convert to tons
217.5 lb ÷ 2,000 = 0.1088 tons
5. Apply waste factor
0.1088 × (1 + 0%) = 0.1088 tons
How to figure asphalt tonnage
Start with plan area and compacted lift thickness. Convert inches to feet, multiply area by thickness for cubic feet, multiply by compacted density, and divide by 2,000 lb per ton. Example using the live formula: 1,000 sf × 2 in × 145 lb/ft³ = 12.08 neat tons. Add the waste percent only to the order quantity, not to the neat takeoff.
Asphalt tonnage formula
Tons = ft² × (in ÷ 12) × lb/ft³ ÷ 2,000. Equivalent: tons = ft³ × unit weight of asphalt ÷ 2,000. Compacted density (unit weight) is often 145 lb/ft³ for hot mix. Change the density input when the mix sheet lists a different value. Thickness must be compacted thickness, not loose lift before rolling.
Square feet and square yards to tons
1 square yard = 9 square feet. At 2 in and 145 lb/ft³, 1 sy = 0.10875 tons and 1,000 sf = 12.08 tons. Use the area unit control for sy takeoffs instead of converting by hand. To convert tons of asphalt to square yards at the same 2 in / 145 lb/ft³ assumption, one ton covers about 9.20 sy (82.76 sf).
Asphalt density and coverage
Compacted hot-mix density is commonly 145 lb/ft³ (about 2,323 kg/m³). Coverage at 145 lb/ft³ from the same formula: 1.5 in → 110.34 sf/ton (12.26 sy/ton); 2 in → 82.76 sf/ton (9.20 sy/ton); 2.5 in → 66.21 sf/ton (7.36 sy/ton); 3 in → 55.17 sf/ton (6.13 sy/ton). Compacted cubic yards: 1 cy = 27 ft³ = 1.9575 tons at 145 lb/ft³, so one ton is about 0.51 cy.
What the plant will actually load
Estimators often take neat compacted tons from area × thickness × density ÷ 2,000, then add 5–8% for joints, yield, and an irregular base. If the plant tickets mix before compaction, ask whether their ton is loose or compacted and change density rather than inventing a second formula. Open-graded and base mixes are commonly lighter than 145 lb/ft³; use the mix sheet when you have it.
Related calculators
- Paving Area CalculatorConvert pavement length and width into square feet and square yards.
- Base Rock Tonnage CalculatorEstimate crushed rock or aggregate base tons from area, thickness, and density.
- Truckload EstimatorConvert cubic yards into truckloads using a real truck capacity.
- Concrete Cubic Yard CalculatorConvert slab or footing dimensions into cubic yards of concrete.
FAQ
What density should I use for asphalt?
Hot-mix asphalt is often around 145 lb/ft³ compacted. That is also a common unit weight of asphalt when the mix sheet is missing. Use the job mix formula or plant ticket when you have it. Open-graded and base mixes can be lighter.
How many square feet will a ton of asphalt cover?
At 2 inches and 145 lb/ft³, one ton covers about 83 square feet (about 9.2 square yards). Coverage falls as thickness or density increases. The coverage table on this page uses the same formula as the calculator.
Is this compacted or loose tons?
The formula uses compacted thickness and compacted density. Order extra if the plant quotes mix before compaction or if the existing surface is irregular.
How do I figure asphalt tonnage from a takeoff?
Convert area to square feet, convert compacted thickness to feet (inches ÷ 12), multiply to get cubic feet, multiply by compacted density in lb/ft³, then divide by 2,000. Example: 1,000 sf × 2 in × 145 lb/ft³ = 12.08 tons neat.
What is the asphalt tonnage formula?
Tons = area (ft²) × (thickness in inches ÷ 12) × density (lb/ft³) ÷ 2,000. Square yards first: multiply sy by 9 to get ft². Compacted cubic yards: tons = ft³ × density ÷ 2,000, and 1 cy = 27 ft³.
How do I convert square feet or square yards to tons of asphalt?
Enter the area here with compacted thickness and density. At 2 in and 145 lb/ft³, 1,000 sf is 12.08 tons and 1 sy is 0.10875 tons. To go the other way, divide 2,000 by (thickness in feet × density) for square feet per ton.
How much is a ton of asphalt?
This page does not price mix. In quantity terms, at 2 in and 145 lb/ft³ one compacted ton covers about 83 sf. One compacted cubic yard at 145 lb/ft³ is 1.9575 tons (27 ft³ × 145 ÷ 2,000).
Can I use this for millings or crushed asphalt?
No. Those Search Console queries landed on the paving category, not this tool. This calculator is compacted hot-mix tons from area × thickness × density. Loose millings and RAP do not use 145 lb/ft³ compacted HMA density.
Disclaimer
These calculators are estimating tools for planning and field checks. They are not a substitute for approved plans, specifications, licensed professional engineering, or governing standards. Confirm densities, waste factors, and yields with your supplier and project documents.