Volumetric & Aggregate Weight
Tons, yards & meters driven by material density — plus volume units.
US Tons ↔ Cubic Yards ↔ Cubic Meters
1 US ton = 2,000 lb. Results depend on the selected material density and are estimates.
All calculations run locally in your browser — no data is uploaded or stored.
Structural & Material Dimensions
Inches ↔ millimeters, feet-inches-fractions, and area.
Inches ↔ Millimeters
Feet – Inches – Fraction → Decimal Feet
Example: 12 ft + 5 in + 7/8 = 12' 5 7/8". Hover or long-press a result for full precision.
Square Feet ↔ Square Meters
Force, Pressure & Engineering Stress
Pressure, distributed load and torque — convert in any direction.
PSI ↔ Bar ↔ MPa
PLF (lb/ft) ↔ kg/m
Torque: lb·ft ↔ N·m
Logistics & Heavy Machinery
Load weights for hauling, rigging and machine limits — plus temperature.
Pounds ↔ Kilograms ↔ Metric Tons
Fahrenheit ↔ Celsius
Negative temperatures are allowed here (winter pours, cold storage).
Quick Reference: Material Densities
Typical field values used by this tool. Actual weights vary with moisture, compaction, gradation and source — always confirm against your supplier's scale tickets for paid quantities.
| Material | kg/m³ | lb/ft³ | US tons / yd³ |
|---|
- Order by weight, estimate by volume. Aggregate is sold by the ton — use the tons-per-yard column to size your truck count before calling it in.
- Add 5–10% overage. Sub-base and backfill work loses material to compaction, spreading and spill. Round up, not down.
- Watch the moisture. Wet sand can weigh roughly 20% more than dry sand. That difference shows up on the scale and in your pour budget.
Frequently Asked Questions
Why does sand vs. gravel change the ton-to-yard conversion?
A ton is a fixed weight, but a cubic yard is a fixed volume — how much fits in that volume depends on the material's density. Particle size, shape and voids all matter: compact crushed stone packs more mass per yard than loose gravel, and wet sand carries water weight between grains. That's why selecting the right material preset changes the result.
How accurate are these estimates for ordering material?
Good enough for budgeting, truck counts and pour planning — typically within 5–10% of delivered weight. For purchase orders, use your supplier's published density or a recent scale ticket, and add a 5–10% overage for compaction and waste. Never use these figures as a substitute for engineered quantities on structural work.
Which "ton" does this tool use?
The Volumetric panel uses the US short ton (2,000 lb ≈ 907.18 kg), the standard for aggregate and trucking in the US. The Logistics panel converts between pounds, kilograms and the metric ton (1,000 kg ≈ 2,204.6 lb) — use that when reading crane charts, shipping manifests or equipment specs from metric sources.
Does moisture content really matter that much?
Yes. That's why the preset dashboard separates Dry Sand (≈1,600 kg/m³) from Wet Sand (≈1,920 kg/m³) — about a 20% swing. The same load gains real weight after rain, which affects hauling limits, formwork pressure and mix water. When in doubt on a big order, weigh a sample bucket on-site and back-calculate.