Oz to mL Converter
Created by: Ethan Brooks Conversion Specialist
Last updated:
One US fluid ounce is 29.57 mL, so multiply ounces by 29.5735 to get milliliters. 8 oz is 236.6 mL (one cup), 12 oz is 354.9 mL and 16 oz is 473.2 mL. To convert mL to oz, divide by 29.5735: 500 mL is 16.9 oz. A UK fluid ounce is smaller, at 28.41 mL.
Oz to mL Converter
Conversion1 fl oz = 29.5735 mL. Switch direction to convert milliliters to us fluid ounces.
Oz to mL conversion chart
mL = US fl oz × 29.5735. fl oz = mL ÷ 29.5735.
| US fluid ounces (fl oz) | Milliliters (mL) |
|---|---|
| 0.5 fl oz | 14.7868 mL |
| 1 fl oz | 29.5735 mL |
| 1.5 fl oz | 44.3603 mL |
| 2 fl oz | 59.1471 mL |
| 3 fl oz | 88.7206 mL |
| 3.4 fl oz | 100.55 mL |
| 4 fl oz | 118.2941 mL |
| 5 fl oz | 147.8676 mL |
| 6 fl oz | 177.4412 mL |
| 7 fl oz | 207.0147 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 |
| 16.9 fl oz | 499.7926 mL |
| 20 fl oz | 591.4706 mL |
| 24 fl oz | 709.7647 mL |
| 32 fl oz | 946.3529 mL |
| 33.8 fl oz | 999.5853 mL |
| 64 fl oz | 1,892.71 mL |
| 128 fl oz | 3,785.41 mL |
| Milliliters (mL) | US fluid ounces (fl oz) |
|---|---|
| 5 mL | 0.1691 fl oz |
| 10 mL | 0.3381 fl oz |
| 15 mL | 0.5072 fl oz |
| 20 mL | 0.6763 fl oz |
| 30 mL | 1.0144 fl oz |
| 50 mL | 1.6907 fl oz |
| 60 mL | 2.0288 fl oz |
| 75 mL | 2.5361 fl oz |
| 100 mL | 3.3814 fl oz |
| 120 mL | 4.0577 fl oz |
| 150 mL | 5.0721 fl oz |
| 200 mL | 6.7628 fl oz |
| 250 mL | 8.4535 fl oz |
| 300 mL | 10.1442 fl oz |
| 330 mL | 11.1586 fl oz |
| 355 mL | 12.004 fl oz |
| 400 mL | 13.5256 fl oz |
| 500 mL | 16.907 fl oz |
| 750 mL | 25.3605 fl oz |
| 1,000 mL | 33.814 fl oz |
How to convert ounces to milliliters
mL = fl oz × 29.5735
fl oz = mL ÷ 29.5735
A US fluid ounce is defined as 1/128 of a US gallon, and the gallon is 231 cubic inches. With 1 inch = 2.54 cm exactly, that makes 1 fl oz = 29.5735295625 mL. For quick kitchen math, 30 mL per ounce is within 1.5%.
US vs UK fluid ounces
A UK (imperial) fluid ounce is 28.4131 mL, about 4% smaller than a US fluid ounce. Recipes from the UK, Australia and older Canadian sources may use it. To convert UK fl oz to mL, multiply by 28.4131.
Common sizes
- 1 tablespoon: 0.5 fl oz, 14.8 mL
- Shot glass: 1.5 fl oz, 44.4 mL
- Soda can: 12 fl oz, 354.9 mL (labeled 355 mL)
- Water bottle: 16.9 fl oz, 500 mL
- Wine bottle: 25.4 fl oz, 750 mL
- Liter: 33.8 fl oz
Frequently Asked Questions
How many mL are in an ounce?
One US fluid ounce is 29.57 mL (exactly 29.5735295625 mL). Many labels round it to 30 mL. One UK (imperial) fluid ounce is slightly smaller at 28.41 mL.
How do I convert oz to mL?
Multiply fluid ounces by 29.5735. 8 fl oz × 29.5735 = 236.6 mL. To convert mL to oz, divide by 29.5735: 500 mL ÷ 29.5735 = 16.9 fl oz.
How many mL is 8 oz?
8 US fluid ounces is 236.6 mL, which is one US cup. US nutrition labels round a cup to 240 mL.
How many mL is 16 oz?
16 US fluid ounces is 473.2 mL, one US pint. A standard 16.9 oz water bottle holds 500 mL.
How many oz is 100 mL?
100 mL is 3.38 US fluid ounces. The 3.4 oz (100 mL) limit for carry-on liquids comes from this conversion.
Is a fluid ounce the same as an ounce of weight?
No. A fluid ounce measures volume and an ounce (avoirdupois) measures weight. One fluid ounce of water weighs about 1.04 oz (29.6 g). For flour, sugar or other dry ingredients, convert by weight instead.
Sources and References
- NIST Special Publication 811, Guide for the Use of the International System of Units. Appendix B: US fluid ounce = 2.957 353 × 10⁻⁵ m³.
- NIST Handbook 44, Appendix C: General Tables of Units of Measurement. US and imperial fluid ounce definitions.
- 21 CFR 101.9, Nutrition labeling of food. Rounds 1 cup to 240 mL and 1 fl oz to 30 mL for labels.