Fluid Ounces to Milliliters Converter

This table covers common US drink and packaging sizes.

To convert fluid ounces to milliliters, multiply the fluid ounce value by 29.5735295625. For example, 8 fl oz times 29.5735295625 equals approximately 236.59 mL.

To go the other way, use the Milliliters to Fluid Ounces converter instead, which divides by the same factor for you. For a fluid ounce value that needs to become cups, see the Fluid Ounces to Cups converter below.

How Many mL in an Ounce

A US fluid ounce is exactly 29.5735295625 mL, about 29.57 mL. It comes from the US gallon of 231 cubic inches split into 128 fluid ounces, with the inch fixed at 2.54 centimeters. An imperial fluid ounce is 28.4130625 mL, a little smaller.

US nutrition labeling rounds a fluid ounce to exactly 30 mL, slightly rounder than the exact customary value of 29.5735295625 mL used throughout this page. This is an officially-sanctioned rounding, not an error, and it explains why a 12 fl oz can is sometimes described as "355 mL" (the precise figure) and sometimes as "360 mL" (the rounded one).

Which Figure This Calculator Uses

This calculator uses the exact 29.5735295625 mL customary value, the more precise choice for scaling a recipe or checking a product label accurately.

A fluid ounce measures volume and a pound measures weight, so the Fluid Ounces to Pounds Converter uses the ingredient's density to connect the two. Because 1 cubic centimeter is exactly 1 milliliter, the Cubic Centimeters to Milliliters Converter is the quick check when a label uses cc instead of mL. When comparing bottle or carton sizes at the store, the Price Per Ounce Calculator works out the price per ounce of two options and shows the better value.

Every volume converter that shares a unit with this page, fluid ounces or milliliters, starting with the reverse conversion, one page per pair of units, then the converters that show many units at once.

The Reverse Conversion

• Milliliters to Fluid Ounces Converter: 1 fluid ounce = 29.5735295625 milliliters

Cubic Units

• Milliliters to Cubic Meters Converter: 1 cubic meter = 1,000,000 milliliters

Milliliters and Liters

• Cups to Milliliters Converter: 1 cup = 236.5882365 milliliters
• Gallons to Milliliters Converter: 1 gallon = 3,785.411784 milliliters
• Milliliters to Pints Converter: 1 pint = 473.176473 milliliters
• Milliliters to Tablespoons Converter: 1 tablespoon = 14.78676478125 milliliters
• Milliliters to Teaspoons Converter: 1 teaspoon = 4.92892159375 milliliters
• Milliliters to Quarts Converter: 1 quart = 946.352946 milliliters
• Milliliters to Liters Converter: 1 liter = 1,000 milliliters
• Liters to Fluid Ounces Converter: 1 liter is about 33.814023 fluid ounces
• Deciliters to Milliliters Converter: 1 deciliter = 100 milliliters
• Centiliters to Milliliters Converter: 1 centiliter = 10 milliliters

Spoons, Fluid Ounces and Cups

• Cups to Fluid Ounces Converter: 1 cup = 8 fluid ounces
• Fluid Ounces to Tablespoons Converter: 1 fluid ounce = 2 tablespoons
• Fluid Ounces to Teaspoons Converter: 1 fluid ounce = 6 teaspoons
• Fluid Ounces to Quarts Converter: 1 quart = 32 fluid ounces
• Fluid Ounces to Pints Converter: 1 pint = 16 fluid ounces
• Centiliters to Fluid Ounces Converter: 1 fluid ounce = 2.95735295625 centiliters

Multi-Unit Converters

• Cubic Feet Converter: cubic feet to cubic inches, cubic yards, gallons, liters and cubic meters at once
• Cubic Meter Converter: cubic meters to liters, milliliters, cubic feet, cubic yards and gallons at once
• Gallon Converter: gallons to quarts, pints, cups, fluid ounces, liters and cubic feet at once
• Volume Converter: any volume in every unit at once, from milliliters to cubic yards, including UK imperial units