To convert ml to UK fluid oz, multiply the milliliter value by 0.035195. The Imperial (UK) fluid ounce equals 28.4131 mL — 4.08% smaller than the US fluid ounce. Use this converter for British recipes, older Commonwealth cookbooks, and UK product labels.
View ml to UK fl oz FormulaThe milliliter is the global metric standard for liquid volume. When converting to Imperial fl oz, 1 mL = 0.035195 UK fl oz. This factor is slightly larger than the US conversion (0.033814) because the UK fl oz is smaller.
The Imperial fluid ounce equals 28.4131 mL. It is defined as 1/160 of an Imperial gallon. Used in the UK, historically in Canada, Australia, and New Zealand. A UK cup is 10 UK fl oz = 284.131 mL (vs 8 US fl oz = 236.588 mL for a US cup).
Drag the slider to compare mL and UK fluid ounces. 1 UK fl oz = 28.41 mL.
To convert milliliters to UK fluid ounces, multiply the mL value by 0.035195.
8 common mL to UK fl oz conversions for British recipes and products.
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| Milliliters (mL) | UK Fluid Ounces | Common Use |
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3.5195 UK fl oz are in 100 mL. This is slightly more than the US conversion (3.3814 US fl oz) because the UK fl oz is a smaller unit.
An Imperial pint equals 20 UK fl oz = 568.261 mL. This is larger than a US pint (16 US fl oz = 473.176 mL). A British "pint of beer" is 20% more liquid than an American pint.
The UK fl oz is defined as 1/160 of an Imperial gallon (4,546.09 mL), making it 28.4131 mL. The US fl oz is 1/128 of a US gallon (3,785.41 mL), making it 29.5735 mL. Different gallon definitions produce different ounce sizes.
The UK officially uses the metric system, but Imperial fl oz still appear on some product labels alongside mL, in older cookbooks, and informally for pints of beer/milk. Most modern British recipes use mL and grams.
1 UK (Imperial) cup = 10 UK fl oz = 284.131 mL. This is 20% larger than a US cup (8 US fl oz = 236.588 mL) and 13.7% larger than a metric cup (250 mL).