Gravel / Fill Calculator
Calculate how much gravel or fill material you need in cubic yards or cubic meters, plus estimated weight in tons.
Supports imperial and metric units.
Material Needed
Gravel/Fill Volume is calculated by multiplying length × width × depth, then converting to the appropriate unit.
Imperial (feet → cubic yards):
Volume (ft³) = Length (ft) × Width (ft) × Depth (in) / 12
Cubic Yards = Volume (ft³) / 27
Metric (meters → cubic meters):
Volume (m³) = Length (m) × Width (m) × Depth (cm) / 100
Weight estimation:
- Gravel weighs approximately 1.4 tons per cubic yard (1.5 tonnes per cubic meter)
- Crushed stone: 1.35 tons/yd³ (1.45 tonnes/m³)
- Sand: 1.3 tons/yd³ (1.4 tonnes/m³)
- Topsoil: 1.1 tons/yd³ (1.2 tonnes/m³)
Standard depths:
- Driveway gravel base: 4–6 inches (10–15 cm)
- Walkway gravel: 2–3 inches (5–8 cm)
- French drain: 6–12 inches (15–30 cm)
- Patio base: 4 inches (10 cm)
Tips:
- Always order 5–10% extra for settling and uneven ground
- Gravel compacts about 30% after settling
- One cubic yard covers approximately 100 sq ft at 3 inches deep
- One cubic meter covers approximately 10 m² at 10 cm deep