Ounces to Milliliters
Type US fluid ounces (fl oz), see milliliters (mL).
By Akash Yadav Updated 23 September 2026
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The formula
How to convert fluid ounces to milliliters
To change fluid ounces into milliliters, multiply by 29.5735295625.
milliliters = fluid ounces × 29.5735295625
Going the other way: fluid ounces = milliliters × 0.033814022702
1 US fluid ounce = 29.5735295625 milliliters. This factor is the exact definition of the unit, not a rounded estimate.
Worked example
You have 8 fluid ounces. Multiply by 29.5735295625. 8 × 29.5735295625 = 236.5882 mL.
Common values
Fluid ounces to milliliters conversion table
| Fluid ounces (fl oz) | Milliliters (mL) |
|---|---|
| 0.5 fl oz | 14.7868 mL |
| 1 fl oz | 29.5735 mL |
| 2 fl oz | 59.1471 mL |
| 3 fl oz | 88.7206 mL |
| 4 fl oz | 118.2941 mL |
| 5 fl oz | 147.8676 mL |
| 6 fl oz | 177.4412 mL |
| 8 fl oz | 236.5882 mL |
| 10 fl oz | 295.7353 mL |
| 12 fl oz | 354.8824 mL |
| 16 fl oz | 473.1765 mL |
| 20 fl oz | 591.4706 mL |
| 24 fl oz | 709.7647 mL |
| 32 fl oz | 946.3529 mL |
| 64 fl oz | 1892.7059 mL |
Before you rely on it
US fluid ounces, and never weight ounces
This page uses the US fluid ounce: exactly 29.5735295625 mL, 1/128 of a US gallon. It is what "oz" means on a US drink can, a baby bottle or a measuring jug, and the factor is exact.
The UK Imperial fluid ounce is about 28.41 mL, some 4 percent smaller. A British recipe written in fluid ounces comes out slightly different if you convert it here — noticeable in baking, not in a glass of water.
An ounce on a food packet or a kitchen scale is a weight, not a volume, and has no fixed milliliter equivalent: 8 oz of honey takes up far less room than 8 oz of popcorn. For weight ounces, use ounces to grams.
US nutrition labels round further: for labelling, 1 fl oz counts as 30 mL and a cup as 240 mL. A serving size on a label may therefore differ slightly from this page. The container size is converted properly: a 12 fl oz can is marked 355 mL, the true figure rounded to the nearest milliliter.
Common questions
Frequently asked questions
How many mL is 1 oz?
1 US fluid ounce is exactly 29.5735295625 mL — about 29.57 mL.
How many mL is 8 oz?
8 fl oz, one US cup, is about 236.59 mL.
How many mL is 12 oz?
12 fl oz, a standard US can, is about 354.88 mL.
How many mL is 16 oz?
16 fl oz, a US pint, is about 473.18 mL.
How many mL is 2 oz?
2 fl oz is about 59.15 mL.
Is a UK fluid ounce the same as a US fluid ounce?
No. The UK Imperial fluid ounce is about 4 percent smaller than the US one this page uses — see the note above for the exact sizes.
Keep going
Related converters
- Milliliters to Ounces mL → fl oz
- Cups to Milliliters cup → mL
- Ounces to Cups fl oz → cup
- Ounces to Grams oz → g
- All volume converters
Every factor on this page is listed in our conversion methodology.