How To Convert Cubic Centimeter to US Ounce
Formula: 1 cm³ = 0.0338140227 fl oz
Example: Convert 55 cm³ to US fluid ounces.
55 × 0.0338140227 = 1.8597712485 fl oz
To convert by hand, you only need one fixed number. Multiply cubic centimeters by 0.0338140227 to get US fluid ounces. If you prefer dividing, divide cm³ by 29.5735295625. Both give the same result, just written differently.
Quick Answer
1 cm³ = 0.0338140227 fl oz
- 10 cm³ = 0.338140227 fl oz
- 30 cm³ = 1.014420681 fl oz
- 100 cm³ = 3.38140227 fl oz
Conversion Formula
US fl oz = cm³ ÷ 29.5735295625 US fl oz = cm³ × 0.0338140227
This means a US fluid ounce is much larger than a cubic centimeter. Since 1 US fl oz = 29.5735295625 cm³, you divide by 29.5735295625 to turn cm³ into fl oz. The multiplication version uses the same relationship, just flipped into a single multiplier.
- Write down your value in cm³.
- Multiply it by 0.0338140227 to get fl oz.
- Round to the decimal places you need.
Cubic centimeter
A cubic centimeter is a metric unit of volume equal to the space of a cube that is 1 cm on each side. Its common symbols are cm³ and cc.
The unit comes from the metric system built around meters and centimeters. It became widely used in science, medicine, and engineering because it matches decimal-based measuring.
- Medicine doses and syringe volumes (often written as cc)
- Engine displacement in small motors (cc)
- Lab measurements of liquids and chemicals
- 3D printing and small container volumes
- Product specs for cosmetics and liquids
US fluid ounce
A US fluid ounce is a US customary unit of volume, not weight. Its symbol is fl oz.
It comes from older English measuring systems and is used in the United States for drinks and packaged liquids. In the US system, it is defined as 1/128 of a US liquid gallon.
- Drink labels and nutrition serving sizes
- Cooking and recipe measurements in the US
- Bottled products like shampoo, lotion, and sauces
- Measuring cups and kitchen tools marked in fl oz
- Tracking water intake in daily routines
Is this Conversion of Cubic Centimeter To US Ounce Accurate?
Yes. This conversion uses the standard US liquid measure definition: 1 US fluid ounce = 29.5735295625 cm³, based on the US gallon being exactly 231 cubic inches and the inch being defined exactly. Because these definitions are fixed, the conversion is stable and reliable for school, lab work, cooking, product labeling, and general use. For how we handle rounding and standards, see our accuracy standards.
Real Life Examples
CC (cm³) is common in medical and technical contexts, while fl oz is common on US bottles and recipes. Here are realistic conversions you might actually need.
- Syringe dose: A 5 cm³ syringe holds 0.1690701135 fl oz, useful if a label is in fl oz but your tool is in cc.
- Small medicine cup: 15 cm³ is 0.5072103405 fl oz, helpful when comparing small liquid doses to US units.
- Travel bottle limit planning: A 60 cm³ travel container equals 2.028841362 fl oz, handy when picking small refill bottles.
- Kitchen conversion for a small ingredient: 30 cm³ of vanilla extract equals 1.014420681 fl oz.
- Cosmetic sample size: A 25 cm³ sample equals 0.8453505675 fl oz, useful for checking how much you are getting.
- Engine fluid additive measure: Adding 100 cm³ of a fluid equals 3.38140227 fl oz, helpful if your measuring cup is marked in fl oz.
- Lab container volume: A 250 cm³ beaker volume is about 8.453505675 fl oz, useful when reading a US-marked bottle.
Quick Tips
- Remember the anchor value: 30 cm³ is about 1.014 fl oz, so 30 cc is roughly 1 fl oz.
- For fast estimates, use 1 fl oz ≈ 30 cm³ (close and easy).
- For better accuracy, use the exact divider: fl oz = cm³ ÷ 29.5735295625.
- If you see cc, treat it the same as cm³ for volume.
- Keep units clear: fl oz is volume, not the same as an ounce by weight.
- Round only at the end if you have multiple steps, this reduces rounding error.