GIGAMILE / ROADWORK TOOLS

Estimate your
bitumen quantity.

Start with project dimensions and work type to estimate material needs before planning your project.

Choose work type

Select a method, then adjust the rate for your project specification.

Default rates are for estimation. Adjust them to the drawings and mix design for the actual work.

Area dimensions

Enter width and length in metres.

Width (m)Length (m)

Area 6,000 m²

Application rate

Adjust the litres per square metre for the material and surface.

Minimum rate (L/m²)Maximum rate (L/m²)

Package size

Enter the actual container capacity before ordering.

Capacity per container (L)

The 195 L/container default is an example; actual package sizes vary by product.

HOW IT WORKS

How it works

Coating work

Area (m²) × application rate (L/m²) = bitumen quantity (L)

Cold Mix

Area × thickness × dry aggregate density × binder proportion = binder mass; divide by emulsion density to convert to litres.

Containers

Bitumen quantity (L) ÷ capacity per container (L), rounded up.

Default Prime Coat, Tack Coat and Cold Mix values refer to the Thai Department of Highways' Prime Coat standard, Tack Coat guide and Cold Mix standard. Surface Treatment rates are planning examples and must be checked against project specifications.

HOT MIX ASPHALT / ORDER ESTIMATE

Estimate the hot-mix asphalt to order

Calculate from paved area, compacted thickness and volume per tonne. The example assumes 1 tonne = 0.416 m³; replace this with your mix-design value.

Project details

Paved area (m²)Compacted thickness (cm)Hot-mix volume per tonne (m³)

Additional costs (optional)

Material price (THB/tonne)Labor and equipment (THB/m²)Tack coat (THB/m²)

The 0.416 m³/tonne figure is an assumption from the reference image. Use the actual mix design and material density before ordering.

Estimate

Enter an area, thickness and volume per tonne greater than zero to see the estimate.

Request a quote

Area covered per tonne in the example

Thickness	Area per tonne	Calculation
3 cm	13.87 m²	0.416 ÷ 0.03
5 cm	8.32 m²	0.416 ÷ 0.05
7 cm	5.94 m²	0.416 ÷ 0.07

The reference image lists THB 25,000/tonne but its example multiplies by THB 2,500/tonne. This calculator therefore uses the price you enter and does not round the quantity before calculating cost.