Convert gallons to tons (short, long, metric) and back. Density-aware with presets for water, diesel, gasoline, crude oil, and more.
Gallons and tons measure different things, but the conversion matters whenever liquids are bought by volume and billed, stored, or shipped by weight. One US gallon of water weighs about 8.345 pounds, so the number of gallons in a ton depends heavily on the liquid density.
This converter supports US short tons, UK long tons, and metric tonnes, and it includes density presets for common liquids such as water, diesel, gasoline, crude oil, milk, ethanol, and seawater. Enter a volume or a tonnage and it shows the equivalent weight and volume in the other units.
The reference table helps compare how many gallons of each liquid fit into one ton, which is useful for storage planning and freight calculations.
A gallon-to-ton conversion is only meaningful once you know both the liquid density and the ton definition being used. This page keeps those two choices visible so the same shipment or tank volume can be checked consistently before it is used in a contract or load estimate.
tons = (gallons × 3,785.41 mL × density g/mL) ÷ (ton_lbs × 453.592 g/lb) gallons = (tons × ton_lbs × 453.592) ÷ (density × 3,785.41)
Result: 3.553 short tons
1,000 gal of diesel (0.85 g/mL): 1000 × 3785.41 × 0.85 = 3,217,599 g = 7,093 lbs = 3.553 short tons.
Petroleum is bought per barrel (42 gal) but transported by the ton. A tanker truck carrying 8,000 gallons of gasoline (0.75 g/mL) weighs about 24,998 lbs or 12.5 short tons of fuel alone—plus the truck's tare weight. Accurate gallon-to-ton conversions are critical for road-weight compliance and fuel-tax auditing.
The short ton (2,000 lbs) is standard in the US. The long ton (2,240 lbs) appears in British and Commonwealth shipping. The metric tonne (1,000 kg ≈ 2,204.6 lbs) dominates international trade. Always verify which ton a specification or regulation requires before performing a conversion.
Liquid density varies with temperature. Water hits maximum density at 4 °C (1.0000 g/mL) and drops to about 0.9982 g/mL at 20 °C. Petroleum products expand roughly 0.06 % per °F. Industry corrects volumes to a reference temperature (usually 60 °F or 15 °C) using Volume Correction Factors (VCF) published by the API.
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About 239.7 US gallons per short ton (2,000 lbs) of water at room temperature.
Roughly 310.5 US gallons. Diesel density ≈ 0.85 g/mL, so 1,000 kg ÷ 0.85 ÷ 3.78541 ≈ 310.5 gal.
A short ton (US) is 2,000 lbs; a long ton (UK) is 2,240 lbs. The metric tonne is 1,000 kg (≈ 2,204.6 lbs).
About 6.17 lbs (2.8 kg). Gasoline density is approximately 0.75 g/mL.
One barrel = 42 US gal. Multiply barrels × 42 × 3,785.41 × density, then divide by targeted ton weight in grams.
Yes. Density decreases with temperature. Hot gasoline is lighter per gallon than cold gasoline. Industry uses 60 °F (15.6 °C) as the standard reference temperature.