Convert Cup (UK/Imperial) to litres
Western Europe · Cooking Measures · active · modern
Conventional value The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact.
1 Cup (UK/Imperial) = 0.284131 litres
litres = Cup (UK/Imperial) × 0.284131
Convert any amount
Cup (UK/Imperial) to litres table
| Cup (UK/Imperial) | litres |
|---|---|
| 0.25 Cup (UK/Imperial) | 0.0710328 litres |
| 0.5 Cup (UK/Imperial) | 0.142066 litres |
| 1 Cup (UK/Imperial) | 0.284131 litres |
| 2 Cup (UK/Imperial) | 0.568262 litres |
| 3 Cup (UK/Imperial) | 0.852393 litres |
| 4 Cup (UK/Imperial) | 1.13652 litres |
| 5 Cup (UK/Imperial) | 1.42066 litres |
| 10 Cup (UK/Imperial) | 2.84131 litres |
| 20 Cup (UK/Imperial) | 5.68262 litres |
| 25 Cup (UK/Imperial) | 7.10328 litres |
| 50 Cup (UK/Imperial) | 14.2066 litres |
| 100 Cup (UK/Imperial) | 28.4131 litres |
About the Cup (UK/Imperial)
UK cup = 284ml = 10 fl oz (UK).
- Symbol
- cup UK
- Value in SI
- 1 Cup (UK/Imperial) = 0.284131 litre
- Typical use
- cooking
- Source
- UnitConvertLab measurement atlas
Every atlas conversion routes through the SI litre. See our methodology and data provenance pages for how these values are sourced and verified.
Related units and variant risk
Other cooking measures units in the Western Europe family, least settled first. If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
- Gill (UK) to litresHistorically reconstructed
- Teaspoon (Metric) to litresConventional value
- Tablespoon (Metric) to litresConventional value
- Cup (Metric) to litresConventional value
- Fluid Ounce (UK) to litresConventional value
- Gallon (UK) to litresConventional value
- Gallon (US) to litresConventional value
- Pint (UK) to litresConventional value
Related conversions
Frequently asked
How many litres are in a Cup (UK/Imperial)?
1 Cup (UK/Imperial) = 0.284131 litres. Multiply the number of Cup (UK/Imperial) by 0.284131 to get litres.
What is Cup (UK/Imperial) used for?
UK cup = 284ml = 10 fl oz (UK). It is classified as active and dates from the modern period.
Is the Cup (UK/Imperial) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI litre, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Cup (UK/Imperial) conversion?
Conventional value — The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact. Source: UnitConvertLab measurement atlas.
Cite this page
UnitConvertLab. (2026). Convert Cup (UK/Imperial) to litres. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/cup-uk-to-liter
Report an incorrect value or source
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