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KG in Litres Water

Convert kilograms of water to litres instantly. Water has a density of 1.0 kg/L at room temperature, so 1 kg of water equals 1 litre.

Conversion Input

kg

Conversion Result

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Enter a value to calculate liters

How KG in Litres Water Works

The KG in litres water calculator converts mass of water in kilograms (kg) to volume in litres (L) by dividing the mass by water density of 1.0 kg/L. Water is the reference substance for the metric system — 1 litre of water was originally defined as the volume of 1 kilogram of water at 4 °C (39.2 °F).

To convert kilograms of water to litres, follow 3 steps:

  1. Enter the mass of water in kilograms.
  2. The calculator uses water density of 1.0 kg/L automatically.
  3. Read the result in litres, millilitres (mL), and US gallons.

Water density changes slightly with temperature. At 4 °C (39.2 °F) water density reaches its maximum of 1.000 kg/L. At 20 °C (68 °F) water density is approximately 0.998 kg/L. At 100 °C (212 °F) water density drops to approximately 0.958 kg/L. The calculator uses the standard room-temperature density of 1.0 kg/L.

KG in Litres Water Formula

The KG in litres water formula is: Litres of Water = Kilograms of Water ÷ 1.0. Because water density is 1.0 kg/L, the mass in kilograms equals the volume in litres. This 1:1 ratio makes water the simplest substance to convert between kilograms and litres.

Litres of Water = Kilograms ÷ 1.0 Volume of water in litres equals mass in kilograms divided by water density (1.0 kg/L).

For water, the conversion is straightforward: 1 kg = 1 litre, 5 kg = 5 litres, 10 kg = 10 litres, 50 kg = 50 litres, 100 kg = 100 litres. To convert litres of water back to kilograms, multiply volume by 1.0: Mass (kg) = Litres × 1.0.

Frequently Asked Questions

Yes, 1 kg of water is approximately 1 litre at room temperature (20 °C / 68 °F). At 4 °C water density is exactly 1.000 kg/L, making the conversion precisely 1:1. At room temperature the difference is less than 0.2%.

10 kg of water equals 10 litres at standard room temperature because water density is 1.0 kg/L. Apply the formula: 10 ÷ 1.0 = 10 litres.

Yes, water temperature affects density. At 4 °C density is 1.000 kg/L, at 20 °C density is 0.998 kg/L, at 60 °C density is 0.983 kg/L, and at 100 °C density is 0.958 kg/L. The difference is small for most practical purposes.

1 litre of water weighs approximately 1 kg (1.0 kg at room temperature). Multiply volume in litres by water density: 1 × 1.0 = 1.0 kg.

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