Convert kilograms to US gallons and gallons to kilograms using liquid density. Presets for water, milk, oil, gasoline, and diesel with kg-per-gallon reference.
Kilograms measure mass and gallons measure volume, so this conversion only works when you know the liquid density. Water is the easy reference point: 1 kg of water is about 0.264 US gallons. Lighter liquids like gasoline occupy more gallons per kilogram, while denser liquids like honey occupy less. In other words, the same kilogram can spread across very different volumes depending on the liquid.
This converter handles both directions and shows gallons, liters, quarts, pints, fluid ounces, milliliters, and pounds. That makes it useful for fuel, food, shipping, and storage calculations where the same mass may fill very different volumes. The extra outputs also help you compare a tank fill, a shipment estimate, or a recipe batch without having to convert again in a separate tool.
Use it when you need to turn a liquid weight into a US gallon figure or the reverse without assuming water-like density. The density remains visible so the result is tied to the actual fluid rather than a generic shortcut.
Mass and volume only line up cleanly for water. This page applies the correct liquid density so gallon estimates stay realistic for fuel, food, and logistics work. It is helpful whenever a kilogram-based limit has to be checked against a gallon-based container size or a tank fill target, especially when the liquid is not water-like.
Gallons = (Kilograms ÷ Density_g/mL) ÷ 3.78541 Kilograms = Gallons × Density_g/mL × 3.78541
Result: 3.583 US gallons
10 kg ÷ 0.737 g/mL = 13.569 L. 13.569 L ÷ 3.785 = 3.583 US gallons. Gasoline is lighter than water, so 10 kg occupies more volume.
Manufacturing plants worldwide ship liquids measured in kilograms, but US receiving warehouses record inventory in gallons. Import documentation often requires both kg and gallon figures. This converter ensures both numbers match, preventing customs discrepancies.
Jet fuel (Jet A) has a density of ~0.804 g/mL. An aircraft that needs 5,000 kg of fuel requires about 1,644 US gallons. Ground fuel trucks measure in gallons, but flight plans calculate fuel in kilograms. Pilots and dispatchers rely on this conversion daily.
Bulk ingredients like vegetable oil or corn syrup are purchased by the metric ton (1,000 kg) but dispensed by the gallon on the production line. Oil at 0.92 g/mL means 1,000 kg ≈ 287 US gallons. Having an accurate converter prevents costly over- or under-ordering.
About 0.264 US gallons, which is the same as 1 liter of water. It is the easiest benchmark to remember when you need a fast kg-to-gallon check.
About 3.785 kg, or 8.345 lb, for one US gallon of water. That is the standard baseline used before adjusting for other liquids.
Kilograms measure mass and gallons measure volume. Different liquids have different masses per unit volume, so density is what links the two quantities.
Check the safety data sheet, product label, or measure the mass of a known volume. A published density is usually best because it is repeatable and easy to verify.
No, 1 UK gallon equals 4.546 liters instead of 3.785 liters. Multiply the UK result by about 0.833 if you need a rough US-gallon estimate.
About 208 kg, or 459 lbs, for the water alone. You still need to add the drum weight itself, so the total shipment weight will be higher.