Oz to Ml

Fluid Ounces to Milliliters Conversion Formula

To convert US fluid ounces to milliliters, use this simple formula:

The US fluid ounce is defined as exactly 29.5735295625 milliliters. Remember, the fluid ounce measures volume, unlike the ounce of weight (28.35 g).

Step-by-Step Volume Conversion Guide

1. Take your volume in US fluid ounces
2. Multiply it by 29.5735 (the number of milliliters in one fluid ounce)
3. Get your result in milliliters

Common Fluid Ounces to Milliliters Conversions

Practical Applications of Oz to Ml Converter

• Cooking: Converting US recipe liquids to metric measures
• Beverages: Understanding US drink sizes — a 12 fl oz can is 355 ml
• Baby care: Reading bottle markings that use both oz and ml
• Medicine: Measuring liquid doses given in fluid ounces
• Bartending: Converting shot (1.5 fl oz) and jigger measures to ml
• Chemistry: Preparing solutions from US-labeled containers

History of Volume Measurement

The fluid ounce is a customary unit of volume. The United States defines the US fluid ounce as exactly 29.5735295625 ml (1/128 of a US gallon). It differs from the imperial fluid ounce (28.4131 ml) used in the UK. The milliliter is the metric unit equal to one cubic centimeter, one thousandth of a liter.

Quick Conversion Tips

For quick approximations, remember: 1 fl oz ≈ 30 ml. To convert fluid ounces to milliliters in your head, multiply by 30: 8 fl oz × 30 ≈ 240 ml. For precise results, always use the exact factor of 29.5735.