Liters to kg Converter

Water, oil, milk — weight by liquid density

Water is 1 kg per liter (at 4°C), so liters equal kilograms. Other liquids need their density factored in; density varies slightly with temperature.
Weight by liquid
LiquidDensity (kg/L)1L8L20L
Water11 kg8.00 kg20.0 kg
Milk1.031.03 kg8.24 kg20.6 kg
Cooking oil0.920.92 kg7.36 kg18.4 kg
Gasoline0.740.74 kg5.92 kg14.8 kg
Diesel0.850.85 kg6.80 kg17.0 kg
Honey1.421.42 kg11.36 kg28.4 kg
Soy sauce1.151.15 kg9.20 kg23.0 kg
Ethanol0.790.79 kg6.32 kg15.8 kg
FAQ
How many kg is 8 liters?
8 kg if it's water. Cooking oil is about 7.4 kg, gasoline about 5.9 kg and milk about 8.2 kg — it depends on the liquid's density.
Why aren't liters and kg the same?
Liters measure volume, kilograms measure mass. They match only for water, whose density is 1 kg/L.
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Converting liters to kilograms

Weight (kg) = volume (L) × density (kg/L). Water converts 1:1, oil (0.92) comes out lighter and honey (1.42) heavier. Useful for shipping weights, camping water and fuel calculations.

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