How to use it
- Enter length in feet
- Enter width in feet
- Enter depth in inches
- Click Calculate
The Gravel Calculator turns the three dimensions you input—length (ft), width (ft) and depth (in)—into three practical measures: cubic feet, cubic yards, and an approximate tonnage. Knowing cubic yards tells you how many full‑size bags or truckloads to order; cubic feet is useful for comparing to material specs; the ton estimate (1 yard = 1.4 US tons) helps you budget freight costs. After you hit Calculate, the tool instantly shows each figure, so you can order the right amount without costly over‑ or under‑purchasing. Read the results left‑to‑right: first cubic yards, then tons, then cubic feet. Adjust dimensions and recalculate until the numbers match your project plan. The calculator uses the industry‑standard conversion of 27 cubic feet per yard, so the yardage is precise. It also rounds the tonnage to one decimal place for quick budgeting.
Pro tips
- Add 5‑10% extra for compaction and spillage
- Round up to the nearest whole yard to avoid shortfalls
- Order a little more than the ton estimate if delivery fees are per truckload
- Double‑check depth conversion from inches to feet before entering
Real-life examples
- Planning a new driveway and need exact gravel volume
- Estimating material for a backyard patio renovation
- Ordering gravel for a drainage trench to prevent ordering too little
Case study
Jane needed a 12 ft × 8 ft patio 4 in deep. The calculator showed 0.89 yd³ (≈1.2 tons) and 24 ft³, so she ordered 1 yard of gravel, avoiding a costly extra load.