Cc to Oz

Liquid Volumetric & NIST SP 811 Standards

A fluid ounce (fl oz) is a unit of volume, distinct from an avoirdupois ounce of mass/weight.

Primary Fluid Ounce Conversion Factors

• 1 US Customary Fluid Ounce: 29.5735 CC = 29.5735 mL

• 1 UK Imperial Fluid Ounce: 28.4131 CC = 28.4131 mL

• 1 US Nutrition Labeling Ounce: 30.0000 CC = 30.0 mL

• 1 US Measuring Cup (8 fl oz): 236.588 CC

• 1 US Pint (16 fl oz): 473.176 CC

• 1 US Quart (32 fl oz): 946.353 CC

• 1 US Gallon (128 fl oz): 3,785.41 CC

How to Use This Calculator

Enter your Volume Value to Convert (e.g. 500.0), Conversion Direction — choose from CC to Fluid Ounces (cc → fl oz), Fluid Ounces to CC (fl oz → cc), and Fluid Ounce Standard — choose from US Customary Fluid Ounce (1 fl oz = 29.574 mL), UK Imperial Fluid Ounce (1 fl oz = 28.413 mL), US Nutrition Labeling Ounce (1 fl oz = 30.0 mL). Results update instantly as you type — adjust any value to compare scenarios.

The Formula

Formula Reference: Cc to Oz

Input variables:

volumeValue — Volume Value to Convert

conversionDirectionSelect — Conversion Direction

ounceStandardSelect — Fluid Ounce Standard

Computed outputs:

convertedVolume — Converted Volume

equivalentUsFluidOunces — Volume in US Fluid Ounces

equivalentUkFluidOunces — Volume in UK Imperial Fluid Ounces

equivalentCubicCentimeters — Volume in CC (mL)

equivalentUsCups — Volume in US Standard Cups

Mathematical relationships extracted from calculation logic:

cc = val * mlPerOz

Reference constants:

mlPerOz = 29.5735295625

Standard: NIST Handbook 44 and BIPM SI unit definitions

Worked Example

A 500 cc beverage container holds 16.91 US fluid ounces of liquid, which equals a standard half-liter water bottle or just over 2 measuring cups.

Understanding Your Result

Unit conversion precision: round to the same number of significant figures as your original measurement. Converting 6 feet to meters gives 1.8288 m — but if your measurement was approximate (±1 inch), expressing more than 2 decimal places is false precision. For international trade and technical specifications, SI units (meters, kilograms, liters) are the standard. US customary units (feet, pounds, gallons) differ from Imperial UK units: 1 US gallon = 3.785 L vs. 1 UK gallon = 4.546 L.