Water conversion
How many glasses of water are in a litre?
Answer
One litre of water equals 4 standard glasses, because a typical glass holds 250 ml. So 2 litres is 8 glasses and 3 litres is 12 glasses. Most adults aim for roughly 2–3 litres of water a day, which is about 8–12 glasses.
Glass sizes vary, but the common reference glass holds 250 ml (about 8.5 fl oz). On that basis the maths is simple: 4 glasses per litre.
| Litres | Glasses (250 ml) | Fluid ounces |
|---|---|---|
| 0.5 | 2 | 16.9 |
| 1 | 4 | 33.8 |
| 1.5 | 6 | 50.7 |
| 2 | 8 | 67.6 |
| 2.5 | 10 | 84.5 |
| 3 | 12 | 101.4 |
If your calculator goal is 2.4 litres, that's about 10 glasses spread across the day.
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Frequently asked
How many glasses is 2 litres of water?
2 litres of water is 8 glasses, using the standard 250 ml glass (2 × 4 = 8).
Is 8 glasses of water the same as 2 litres?
Yes. Eight 250 ml glasses add up to 2 litres. The popular '8 glasses' rule is roughly 2 litres, though your real need depends on your body weight, activity, and climate.
How many glasses is 3 litres?
3 litres of water is 12 glasses of 250 ml each.