Water conversion
How many cups of water are in a litre?
Answer
One litre of water is about 4.2 US cups, since a US cup is 236.6 ml. That makes 2 litres roughly 8.5 cups and 3 litres about 12.7 cups. A 2-litre daily target is therefore a little over 8 cups of water.
MRWritten by Maya Renner, Hydration & nutrition writerReviewed
A US legal cup is 236.588 ml, so a litre holds about 4.23 cups. (A metric cup of 250 ml gives exactly 4 cups per litre.)
| Litres | US cups | Metric cups (250 ml) |
|---|---|---|
| 0.5 | 2.1 | 2 |
| 1 | 4.2 | 4 |
| 1.5 | 6.3 | 6 |
| 2 | 8.5 | 8 |
| 2.5 | 10.6 | 10 |
| 3 | 12.7 | 12 |
A 2.5 litre goal is about 10.5 US cups of water a day.
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Frequently asked
How many cups is 2 litres of water?
2 litres of water is about 8.5 US cups, or exactly 8 metric (250 ml) cups.
Is a cup of water 250 ml?
A metric cup is 250 ml, but a US legal cup is 236.6 ml. The two differ by about 5%, which matters over a full day.