Milliliter to Fluid Ounce (US) (mL to US fl oz)
Result
0.0338140227 Fluid Ounce (US)
Formula
US fl oz = mL × 0.0338140227
1 mL = 0.0338140227 US fl oz, and 1 US fl oz = 29.57352956 mL.
The litre is exactly 1 dm³ (0.001 m³). The US gallon is defined as 231 cubic inches, which makes it exactly 3.785411784 L; quarts, pints, cups and fluid ounces are fixed fractions of it.
Worked examples
- 30 mL × 0.0338140227 = 1.0144207 US fl oz
- 100 mL × 0.0338140227 = 3.3814023 US fl oz
- 330 mL × 0.0338140227 = 11.158627 US fl oz
- 500 mL × 0.0338140227 = 16.907011 US fl oz
Things to know about mL to US fl oz
- One US fluid ounce is 29.5735 mL. US nutrition labels round it to 30 mL.
- Airport liquid limits of 100 mL are 3.4 US fl oz.
- A UK fluid ounce is smaller (28.413 mL), so 500 mL is 16.9 US fl oz but 17.6 UK fl oz.
Milliliter to Fluid Ounce (US) table
| Milliliter (mL) | Fluid Ounce (US) (US fl oz) |
|---|---|
| 1 | 0.033814023 |
| 2 | 0.067628045 |
| 5 | 0.16907011 |
| 10 | 0.33814023 |
| 20 | 0.67628045 |
| 30 | 1.0144207 |
| 50 | 1.6907011 |
| 100 | 3.3814023 |
| 330 | 11.158627 |
| 500 | 16.907011 |
| 1,000 | 33.814023 |
The units
- Milliliter (mL)
- One thousandth of a litre — the same volume as one cubic centimetre.
- Fluid Ounce (US) (US fl oz)
- One 128th of a US gallon: 29.5735295625 mL.
Sources for these factors
- Handbook 44 (2024), Appendix C: General Tables of Units of Measurement — NIST
- Guide for the Use of the International System of Units (SP 811), Appendix B: conversion factors — NIST
- 21 CFR 101.9 (nutrition labeling: household measure equivalents) — U.S. FDA / eCFR
Last reviewed against these sources. An automated check recomputes every factor from its definition on each build. How we check accuracy