Fluid Ounces to Cubic Centimeters
An instant fluid ounces-to-cubic centimeters converter, with the formula and a reference table below.
| Fluid Ounces | Cubic Centimeters |
|---|---|
| 1 fl oz | 29.57353 cm³ |
| 2 fl oz | 59.147059 cm³ |
| 3 fl oz | 88.720589 cm³ |
| 5 fl oz | 147.867648 cm³ |
| 10 fl oz | 295.735296 cm³ |
| 25 fl oz | 739.338239 cm³ |
| 50 fl oz | 1478.676478 cm³ |
| 100 fl oz | 2957.352956 cm³ |
How to use
- Enter a value in the Fluid Ounces field.
- The Cubic Centimeters figure appears immediately — no button to press.
- Typing in the Cubic Centimeters field converts back to Fluid Ounces the same way.
- Use the reference table for the values that come up most often.
Fluid Ounces to Cubic Centimeters formula
Converting fluid ounces to cubic centimeters is a single multiplication by 29.5735296.
cm³ = fl oz × 29.5735296
Why this factor: the fluid ounce and the cubic centimeter are both defined against the liter, so dividing one definition by the other gives 29.5735296 directly. Both definitions are set out in full below.
To go the other way, divide by 29.5735296 — or use the Cubic Centimeters to Fluid Ounces converter, which is the same calculation reversed.
Worked example
Start with 8 fl oz. Multiply by 29.5735296 to get 236.588236 cm³.
8 fl oz × 29.5735296 = 236.588236 cm³
The converter above does this for any value you type, in either direction.
What is a fluid ounce?
A US fluid ounce is a small liquid volume, one eighth of a cup.
Definition: Exactly one 128th of a US liquid gallon, so exactly 29.5735295625 milliliters.
Where it is used: Beverage cans and bottles, cosmetics, and small liquid quantities in the US.
Worth knowing: Measures volume, not weight — a fluid ounce of water weighs about 1.04 avoirdupois ounces. The imperial fluid ounce is 28.41 mL.
What is a cubic centimeter?
A cubic centimeter is the volume of a one-centimeter cube, identical to a milliliter.
Definition: Exactly 1×10⁻⁶ cubic meter, which is exactly 1 mL.
Where it is used: Engine displacement on motorcycles and small engines, and medical volumes where it is written 'cc'.
Fluid Ounces vs Cubic Centimeters
The fluid ounce is a US customary unit while the cubic centimeter is a metric unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many cubic centimeters are in a fluid ounce?
One fluid ounce equals 29.5735296 cubic centimeters.
What is the formula to convert fluid ounces to cubic centimeters?
Multiply the number of fluid ounces by 29.5735296. To reverse it, divide by 29.5735296 instead.
How do I convert cubic centimeters back to fluid ounces?
Divide by 29.5735296, which is the same as multiplying by 0.0338140227.
How many cubic centimeters are in 10 fluid ounces?
10 fl oz works out to 295.735296 cm³.
Is there anything to watch out for with fluid ounces?
Measures volume, not weight — a fluid ounce of water weighs about 1.04 avoirdupois ounces. The imperial fluid ounce is 28.41 mL.
How is the fluid ounce defined?
Exactly one 128th of a US liquid gallon, so exactly 29.5735295625 milliliters.