Milliliters to Ounces (ml to oz) Calculator

Created by: Daniel Hayes
Last updated:
This calculator provides a straightforward way to convert liquid volumes from milliliters (ml) to US fluid ounces (fl oz). Essential for anyone needing to translate measurements between metric and US customary systems.
What is a Milliliters to Ounces Calculator?
A Milliliters to Ounces (ml to oz) Calculator is a conversion tool used to translate liquid volume measurements from milliliters (ml) to US fluid ounces (fl oz). This is the reverse of the oz to ml conversion and is equally important in fields like cooking, medicine, and science where precise liquid measurements are necessary and units may vary.
Milliliters are a standard unit in the metric system, while US fluid ounces belong to the US customary system. This calculator helps bridge the gap between these two systems, ensuring accuracy in various applications.
Milliliters to Ounces Formula
The conversion from milliliters to US fluid ounces is based on the inverse of the oz to ml relationship:
1 milliliter (ml) ≈ 0.033814 US fluid ounces (fl oz)
Therefore, to convert milliliters to fluid ounces, you multiply the number of milliliters by approximately 0.033814:
Fluid Ounces (fl oz) = Milliliters (ml) × 0.033814
Alternatively, you can divide the number of milliliters by 29.5735 (since 1 fl oz = 29.5735 ml):
Fluid Ounces (fl oz) = Milliliters (ml) / 29.5735
Where:
- Fluid Ounces (fl oz) = Volume in US fluid ounces
- Milliliters (ml) = Volume in milliliters
How to Calculate Milliliters to Ounces: Example
Suppose you have 250 ml of water and want to convert this volume to US fluid ounces.
- Identify the amount in milliliters:
Milliliters = 250 ml
- Apply the conversion formula (multiplication):
Fluid Ounces = Milliliters × 0.033814
Fluid Ounces = 250 × 0.033814 ≈ 8.4535 fl oz
- Alternatively, apply the conversion formula (division):
Fluid Ounces = Milliliters / 29.5735
Fluid Ounces = 250 / 29.5735 ≈ 8.4535 fl oz
So, 250 milliliters is approximately equal to 8.45 US fluid ounces.
Common Applications
- Cooking and Baking: Adapting recipes from metric measurements (ml) to US customary units (fl oz).
- Healthcare: Converting medication or fluid intake volumes for patients or record-keeping.
- Scientific Research: Translating experimental data or solution volumes between measurement systems.
- Cosmetics and Personal Care: Understanding product sizes often labeled in ml.
- Travel: Converting liquid container sizes, for example, from TSA limits in ounces to ml.
Sources and References
- National Institute of Standards and Technology (NIST). (n.d.). *General Tables of Units of Measurement*. U.S. Department of Commerce.
- International Bureau of Weights and Measures (BIPM). (2019). *The International System of Units (SI)* (9th ed.).
- American Society for Testing and Materials (ASTM). (n.d.). *ASTM E380-93 Standard Practice for Use of the International System of Units (SI) (the Modernized Metric System)*.