CC to Oz Converter

Convert cubic centimeters to US and imperial fluid ounces with precise volume factors.

Convert cc to fluid ounces
Enter a cubic-centimeter volume to calculate US and UK fluid-ounce equivalents.

About converting cc to fluid ounces

A cubic centimeter, abbreviated cc, is a metric volume equal to exactly one milliliter. A fluid ounce is a volume unit used in customary measurement systems, but its size depends on which system is intended. One US fluid ounce equals exactly 29.5735295625 cubic centimeters, while one imperial fluid ounce used in the United Kingdom equals exactly 28.4130625 cubic centimeters. This calculator displays both values so the distinction is explicit. To convert cc to US fluid ounces, divide the cubic-centimeter amount by 29.5735295625. To convert cc to imperial fluid ounces, divide by 28.4130625. Because the imperial fluid ounce is smaller, a fixed cc amount produces a slightly larger number of UK fluid ounces. For instance, 100 cc is about 3.3814 US fluid ounces but about 3.5195 UK fluid ounces. Choosing the correct standard matters when following recipes, checking package sizes, or comparing technical specifications from different countries. Fluid ounces measure volume and should not be confused with ounces of weight. A fluid ounce of water has a mass close to one ounce under some conditions, but that coincidence does not apply exactly or to every material. Converting cc directly to weight ounces requires the density of the particular substance. This tool performs only volume conversion, making it suitable for liquids, gases, and container capacities without assuming a material. Cubic centimeters appear often in medicine, laboratory work, automotive fluid specifications, and engine displacement. Fluid ounces are common in recipes, beverage labels, and household measuring cups. The calculator also shows milliliters and liters, which can help verify a result against a metric label. Decimal entries are accepted, and calculations use the exact defined conversion constants before the displayed number is rounded. For medication, use the units and calibrated device specified by a healthcare professional rather than estimating from a household spoon. For recipes or technical work, keep enough decimal places for the task while recognizing that the precision of the source measurement limits the precision of the answer. This converter provides a quick, transparent way to move between cc, both major fluid-ounce standards, milliliters, and liters.

CC to fluid ounce examples

These examples use the US fluid ounce unless otherwise noted.

Cubic centimetersUS fluid ouncesTypical use
29.5735 cc1 US fl ozDefined US unit
100 cc3.3814 US fl ozSmall container
250 cc8.4535 US fl ozRecipe quantity
500 cc16.907 US fl ozHalf-liter volume

How to convert cc to oz

  1. Enter the volume measured in cubic centimeters.
  2. Select Convert to calculate both fluid-ounce standards.
  3. Use the US fluid-ounce result for US customary measurements.
  4. Use the UK fluid-ounce result for imperial measurements.

Frequently asked questions

How many cc are in a US fluid ounce?

One US fluid ounce contains exactly 29.5735295625 cc. Divide a cc value by that factor to obtain US fluid ounces.

Are US and UK fluid ounces the same?

No, a US fluid ounce and an imperial fluid ounce have different sizes. One imperial fluid ounce is 28.4130625 cc, so the calculator reports it separately.

Does this convert cc to weight ounces?

No, this conversion is between volume units. Converting a volume to weight requires the substance density and a mass calculation.

How many US fluid ounces is 100 cc?

One hundred cc is approximately 3.3814 US fluid ounces. The same volume is approximately 3.5195 imperial fluid ounces.

Can I use this conversion for medicine?

The mathematical conversion is accurate for liquid volume. Always follow professional dosing directions and use a properly calibrated measuring device.