Fluid ounces to cubic centimeters (fl oz to cc) converter

What is a fluid ounces to cubic centimeters converter?

A fluid ounces to cubic centimeters converter is an online tool that translates a volume measured in US fluid ounces (fl oz) into its equivalent in cubic centimeters (cc, also written cm³), and converts back the other way. The fluid ounce is a customary unit used in the United States for liquids, while the cubic centimeter is a metric unit equal to the volume of a cube one centimeter on each side. Because one cubic centimeter holds exactly one milliliter, this conversion is the same as converting fluid ounces to milliliters.

This kind of conversion comes up whenever a recipe, medical dose, or product label written for one measurement system has to be understood in the other. Pharmacists, cooks, lab technicians, and manufacturers all move between fl oz and cc regularly.

How it works

The conversion rests on a single fixed relationship: one US fluid ounce equals approximately 29.5735 cubic centimeters. To convert fluid ounces to cubic centimeters you multiply by 29.5735. To go the other way, you divide by 29.5735 (equivalently, multiply by about 0.033814). The converter applies this factor automatically: type a value into either field, and the matching value appears in the other field instantly.

Be aware that the US fluid ounce is slightly larger than the Imperial (UK) fluid ounce, which is about 28.4131 cc. This converter uses the US fluid ounce.

Formula

To convert US fluid ounces to cubic centimeters:

$\text{cm}^3 = \text{fl oz} \times 29.5735$

To convert cubic centimeters to US fluid ounces:

$\text{fl oz} = \text{cm}^3 \times 0.033814$

Fluid ounces to cubic centimeters conversion table

The table below lists common fluid ounce amounts and their cubic centimeter equivalents, rounded to a sensible precision.

Examples

Example 1: One fluid ounce to cubic centimeters

Convert 1 US fluid ounce to cubic centimeters:

$1 \text{ fl oz} \times 29.5735 = 29.5735 \text{ cm}^3$

So a single fluid ounce is just under 30 cc.

Example 2: A standard cup

A US cup holds 8 fluid ounces. To find its volume in cubic centimeters:

$8 \text{ fl oz} \times 29.5735 = 236.588 \text{ cm}^3$

That is roughly 237 cc, a useful figure for kitchen and lab work alike.

Example 3: Cubic centimeters to fluid ounces

Suppose a label states a container holds 100 cc. To express that in fluid ounces:

$100 \text{ cm}^3 \times 0.033814 = 3.3814 \text{ fl oz}$

So 100 cc is about 3.38 fluid ounces.

Example 4: A large quantity

Convert 1000 US fluid ounces to cubic centimeters:

$1000 \text{ fl oz} \times 29.5735 = 29573.5 \text{ cm}^3$

That is nearly 29.6 liters.

Notes

• One cubic centimeter equals one milliliter, so converting fl oz to cc gives the same number as converting fl oz to mL.
• This converter uses the US fluid ounce. The Imperial (UK) fluid ounce is smaller, at about 28.4131 cc.
• The term “cc” is common in medicine and engineering, while “cm³” is the strict SI notation; they refer to the same unit.
• For very precise scientific work, use the full factor 29.5735295625 rather than the rounded value.

Frequently asked questions

How many cc are in a fluid ounce?

One US fluid ounce equals approximately 29.5735 cubic centimeters. For everyday estimates, rounding to 30 cc per fluid ounce is close enough.

Is a cc the same as a milliliter?

Yes. One cubic centimeter is exactly equal to one milliliter, so a fluid ounce is also about 29.5735 mL.

How do I convert cc back to fluid ounces?

Divide the number of cubic centimeters by 29.5735, or multiply by 0.033814. For example, 100 cc equals about 3.38 US fluid ounces.

Does this converter use US or UK fluid ounces?

It uses the US fluid ounce, which is about 29.5735 cc. The Imperial (UK) fluid ounce is slightly smaller at about 28.4131 cc, so check which system your source uses.

Why is the fluid ounce a measure of volume here, not weight?

A fluid ounce measures volume, unlike the ounce used for weight. One fluid ounce of water weighs close to one weight ounce, but for other liquids the weight differs because densities vary.

How many cc are in 8 fluid ounces?

Eight US fluid ounces equal 236.588 cubic centimeters, since 8 × 29.5735 = 236.588 cc.