Imperial fluid ounce to Milliliter Converter
Type a value — the answer appears instantly. 1 fl oz (UK) = 28.4131 ml.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
28.4131 milliliters
= 0.0284131 L= 0.00750594 gal
equals 28.4131 millilitersFormula: ml = fl oz (UK) × 28.413063
Imperial fluid ounce to Milliliter formula
ml = fl oz (UK) × 28.413063
Convert 5 imperial fluid ounces to milliliters
- Start with 5 imperial fluid ounces.
- Multiply by the conversion factor: 5 × 28.4131 = 142.065.
- So 5 fl oz (UK) = 142.065 ml.
Imperial fluid ounce to Milliliter conversion table
| Imperial fluid ounces (fl oz (UK)) | Milliliters (ml) |
|---|---|
| 0.01 fl oz (UK) | 0.284131 ml |
| 0.1 fl oz (UK) | 2.84131 ml |
| 0.25 fl oz (UK) | 7.10327 ml |
| 0.5 fl oz (UK) | 14.2065 ml |
| 1 fl oz (UK) | 28.4131 ml |
| 2 fl oz (UK) | 56.8261 ml |
| 3 fl oz (UK) | 85.2392 ml |
| 4 fl oz (UK) | 113.652 ml |
| 5 fl oz (UK) | 142.065 ml |
| 6 fl oz (UK) | 170.478 ml |
| 7 fl oz (UK) | 198.891 ml |
| 8 fl oz (UK) | 227.305 ml |
| 9 fl oz (UK) | 255.718 ml |
| 10 fl oz (UK) | 284.131 ml |
| 15 fl oz (UK) | 426.196 ml |
| 20 fl oz (UK) | 568.261 ml |
| 25 fl oz (UK) | 710.327 ml |
| 30 fl oz (UK) | 852.392 ml |
| 40 fl oz (UK) | 1,136.52 ml |
| 50 fl oz (UK) | 1,420.65 ml |
| 75 fl oz (UK) | 2,130.98 ml |
| 100 fl oz (UK) | 2,841.31 ml |
| 250 fl oz (UK) | 7,103.27 ml |
| 500 fl oz (UK) | 14,206.5 ml |
| 1,000 fl oz (UK) | 28,413.1 ml |
| 5,000 fl oz (UK) | 142,065 ml |
| 10,000 fl oz (UK) | 284,131 ml |
Unit definitions
What is a imperial fluid ounce?
The imperial (UK) fluid ounce is one 160th of an imperial gallon, about 28.41 millilitres. It is used in the United Kingdom and Commonwealth countries. It is slightly smaller than the US fluid ounce.
What is a milliliter?
The millilitre is one thousandth of a litre and is equal to one cubic centimetre. It is the everyday metric unit for liquids, cooking, and medicine dosing in most countries. A teaspoon holds about five millilitres.
Frequently asked questions
How many milliliters are in one imperial fluid ounce?
One imperial fluid ounce equals 28.4131 milliliters (1 fl oz (UK) = 28.4131 ml).
How do I convert imperial fluid ounces to milliliters?
Multiply the value in imperial fluid ounces by 28.4131. For example, 10 fl oz (UK) × 28.4131 = 284.131 ml.
Which is bigger — a imperial fluid ounce or a milliliter?
A imperial fluid ounce is bigger: one imperial fluid ounce contains 28.4131 milliliters.
Is this imperial fluid ounce to milliliter converter free?
Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.
Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.