Material estimator
Gravel Calculator
Home Estimate gravel needed for driveways, garden beds, and pathways. Calculate volume and tons required. Gravel Volume Calculator | Driveway & Garden Fill Use this gravel calcula.
Gravel Calculator
Net volume: 0.750 m3 (26.5 ft3)
With waste: 0.825 m3 (~1.08 yd3)
Weight: 1.32 t (1320 kg)
Estimate gravel needed for driveways, garden beds, and pathways. Calculate volume and tons required.
Gravel Volume Calculator | Driveway & Garden Fill
Use this gravel calculator to estimate how much gravel you need for any landscaping, driveway, or ground-fill project. Once activated, you will be able to enter total length, width, and depth to receive an instant volume calculation in cubic meters and tons.
Enter area size and depth to estimate gravel volume and weight.
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Standard Gravel Depth Guidelines
- Paths & walkways: 50–75 mm
- Driveways: 100–150 mm
- Drainage layers: 150–200 mm
Example
Driveway: 6m × 3m with depth 0.1m
Volume = 6 × 3 × 0.1 = 1.8 m³
If gravel density is ~1.6 tons per m³:
1.8 × 1.6 = 2.88 tons required
Gravel Density
Most gravel types range between 1.5–1.8 tons per m³, depending on:
- stone type
- moisture level
- compaction rate
Tips Before Ordering Gravel
- Consider compaction: final level settles lower
- Add 5–10% extra for delivery loss or leveling
- Ensure weed membrane beneath for clean finish
- Avoid spreading in heavy rain; water bloats weight
Gravel Types
- Pea gravel: smooth, decorative
- Crushed gravel: structural, driveways
- River rock: larger, landscaping
- Limestone/granite: compact well, ideal load-bearing
FAQs
How accurate is gravel volume estimation?
It provides standard density-based calculation and is generally accurate for most DIY uses.
Can I convert m³ to tons?
Yes, the live calculator will show both.
Should I add sand beneath gravel?
For driveways or paths, a compacted base layer is recommended.