Does 1 Litre of Water Weigh 1 Kilogram? Understanding the Metric Relationship
Learn why 1 litre of water weighs 1 kilogram at 4°C and how this metric principle applies to measurements.
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Yes, 1 litre of water does weigh 1 kilogram. The density of water is such that 1 litre of water at its maximum density (around 4°C) is equivalent to 1 kilogram. This relationship is a fundamental principle in metric measurements.
FAQs & Answers
- Why does 1 litre of water weigh exactly 1 kilogram? Because water’s maximum density occurs at around 4°C, where 1 litre of water equals 1 kilogram, forming the basis of the metric system.
- Does 1 litre of any other liquid weigh 1 kilogram? No, the weight of 1 litre varies depending on the liquid's density; only water at 4°C weighs 1 kilogram per litre.
- How does temperature affect the weight of water? Water’s density changes with temperature, so 1 litre weighs slightly less or more than 1 kilogram at temperatures different from 4°C.