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A gravel calculator determines how much gravel, crushed stone, or pea gravel you need for a project area. It calculates volume in cubic yards or cubic feet and converts to weight (tons) — the unit gravel is typically sold in.

단계별 가이드

1. 1Volume = Length (ft) × Width (ft) × Depth (ft) / 27 = cubic yards
2. 2Typical coverage depth: driveways 3–4", paths 2–3", drainage 6–12"
3. 3Weight: gravel weighs ~2,800 lbs/yd³ (1.4 tons/yd³)
4. 4Compaction: gravel compacts 10–15%, so order ~15% extra

풀어진 예시