Road Material Calculator

TRANSPORTATION

Flexible pavement · Quantities · Aggregates · Bitumen · Base & Sub-base · Cost

m³ tonnes km

Road length

Carriageway width

Shoulder width (each side)

Surface course (BC/DBC)

Base course (WBM/WMM)

Sub-base (GSB)

                            Surface course volume
                            —
                            m³
                        

                            Base course volume
                            —
                            m³
                        

                            Sub-base volume
                            —
                            m³
                        

Total paved area — m²

Total road width — m

V = L × W × t | 1 km = 1000 m

Flexible pavement — layer-wise construction

Volume comparison by layer

Road length

Pavement width

Slab thickness

Concrete grade

—

Joint spacing

                            Concrete volume
                            —
                            m³
                        

                            Pavement area
                            —
                            m²
                        

Number of joints — —

Steel required (approx) — kg

V = L × W × t | Joints = L / spacing

Rigid pavement — jointed concrete slab

Slab thickness ✓ OK

Joint spacing ✓ OK

Concrete grade ✓ OK

Sub-base ✓ OK

Material	Density (kg/m³)	Unit weight (kN/m³)	Conversion	Use
Bitumen	1000-1050	9.8-10.3	1 m³ ≈ 1.0 t	Surface course
Aggregate (coarse)	1600-1800	15.7-17.7	1 m³ ≈ 1.6-1.8 t	Base/WMM
Aggregate (fine)	1500-1700	14.7-16.7	1 m³ ≈ 1.5-1.7 t	Sub-base/GSB
Concrete (plain)	2300-2400	22.6-23.5	1 m³ ≈ 2.3-2.4 t	Rigid pavement
Concrete (reinforced)	2400-2500	23.5-24.5	1 m³ ≈ 2.4-2.5 t	Rigid pavement
Granular sub-base	1800-2000	17.7-19.6	1 m³ ≈ 1.8-2.0 t	Sub-base/GSB
WBM/WMM	2000-2200	19.6-21.6	1 m³ ≈ 2.0-2.2 t	Base course
Bituminous mix	2200-2400	21.6-23.5	1 m³ ≈ 2.2-2.4 t	Surface course

Weight (t) = Volume (m³) × Density (t/m³)