What is an ounces to cc converter?
An ounces to cc converter is an online tool that turns a volume measured in US fluid ounces (fl oz) into its equivalent in cubic centimeters (cc), and back again. A cubic centimeter, written cc or cm³, is exactly the same volume as one milliliter, so “cc” and “mL” are interchangeable. This converter is especially handy in medicine, automotive work, and science, where volumes are frequently quoted in cc.
Type a value into either field and the other updates automatically in real time — no button to press.
How does it work?
One cubic centimeter equals one milliliter, and one US fluid ounce is exactly 29.5735 milliliters. Therefore one US fluid ounce equals 29.5735 cc. Going the other way, one cubic centimeter equals about 0.033814 US fluid ounces. The conversion is a single multiplication or division because both units describe the same physical volume.
The US fluid ounce differs from the UK (imperial) fluid ounce of about 28.4131 mL. This converter defaults to the US ounce; switch units with the selector when you need the imperial value.
Formula
To convert US fluid ounces to cubic centimeters:
To convert cubic centimeters to US fluid ounces:
Worked examples
Example 1: 1 fluid ounce to cubic centimeters
So one US fluid ounce is 29.5735 cc (equivalently, 29.5735 mL).
Example 2: 100 cubic centimeters to fluid ounces
A 100 cc volume is therefore about 3.38 US fluid ounces.
Conversion table
| Fluid ounces (US) | Cubic centimeters (cc) |
|---|---|
| 1 | 29.5735 |
| 2 | 59.147 |
| 4 | 118.294 |
| 8 | 236.588 |
| 12 | 354.882 |
| 16 | 473.176 |
| 32 | 946.353 |
Notes
- A cubic centimeter (cc) and a milliliter (mL) are exactly equal, so 1 fl oz = 29.5735 cc = 29.5735 mL.
- Engine displacements are often quoted in cc, while beverages may be quoted in fluid ounces — this converter helps compare them.
- To convert fluid ounces to quarts instead, use the quarts to ounces converter.
Frequently asked questions
How many cc are in 1 fluid ounce?
There are 29.5735 cubic centimeters in one US fluid ounce.
How many fluid ounces are in 100 cc?
100 cubic centimeters equal about 3.3814 US fluid ounces.
Is a cc the same as a ml?
Yes. One cubic centimeter (cc or cm³) is exactly equal to one milliliter (mL).
Does this converter use US or UK ounces?
By default it uses US fluid ounces (29.5735 mL). Use the unit selector to switch to UK (imperial) ounces, which are about 28.4131 mL.