# cc to oz Converter URL: https://speedycalculator.com/calculators/conversion/cc-to-oz/ Last updated: 2026-10-25 > Convert cubic centimetres (cm³ (cc)) to US fluid ounces (US fl oz): 1 cubic centimetre = 0.033814023 US fl oz, so multiply by 0.033814023 or divide by 29.57353. Both fields are editable, so you can also type in US fluid ounces and get cubic centimetres back. ## Inputs - Cubic centimetres (cm³ (cc)) ## Results - US fluid ounces ## Formula ``` 1 cm³ (cc) = 0.033814023 US fl oz 1 US fl oz = 29.57353 cm³ (cc) US fl oz = cm³ (cc) × 0.033814023 ``` ## Explanation One U.S. fluid ounce is about 29.57 cc. Medicine cups are often marked in both, with 30 cc treated as 1 oz. ### How to use the cc to oz Converter - Type the number of cubic centimetres into the **Cubic centimetres** field. Decimals such as 15 are fine. - Read the answer in **US fluid ounces** – it updates as you type, with no button to press. - To convert the other way, type into **US fluid ounces** and the cubic centimetres are recalculated. - Press **Copy results** to copy both values with the page title, or **Copy link** to share this exact conversion. This page converts only cm³ (cc) ⇄ US fl oz. Need a different unit? Use the general volume converter, where you can choose any “from” and “to” unit. ### How it works Both units measure volume, so they are always in the same ratio: one cubic centimetre equals 0.033814023 US fluid ounces. The calculator multiplies the number of cubic centimetres you type by 0.033814023 to give US fluid ounces, and when you type into the US fluid ounces field it divides by the same factor to give cubic centimetres. Because the ratio never changes, doubling the cubic centimetres always doubles the US fluid ounces. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation). ### How to convert cubic centimetres to US fluid ounces - Write down the value in cubic centimetres, for example **30 cm³ (cc)**. - Multiply by the conversion factor 0.033814023 (because 1 cubic centimetre = 0.033814023 US fl oz). - 30 × 0.033814023 = **1.0144207 US fl oz**. - To go back from US fluid ounces to cubic centimetres, divide by 0.033814023 – or multiply by 29.57353. ### cm³ (cc) to US fl oz conversion table Cubic centimetresUS fluid ouncesUS fluid ouncesCubic centimetres1 cm³ (cc)0.033814023 US fl oz1 US fl oz29.57353 cm³ (cc)5 cm³ (cc)0.16907011 US fl oz2 US fl oz59.147059 cm³ (cc)10 cm³ (cc)0.33814023 US fl oz5 US fl oz147.86765 cm³ (cc)15 cm³ (cc)0.50721034 US fl oz10 US fl oz295.7353 cm³ (cc)30 cm³ (cc)1.0144207 US fl oz20 US fl oz591.47059 cm³ (cc)50 cm³ (cc)1.6907011 US fl oz50 US fl oz1,478.6765 cm³ (cc)60 cm³ (cc)2.0288414 US fl oz100 US fl oz2,957.353 cm³ (cc)100 cm³ (cc)3.3814023 US fl oz1,000 US fl oz29,573.53 cm³ (cc)250 cm³ (cc)8.4535057 US fl oz500 cm³ (cc)16.907011 US fl oz ### What is a cubic centimetre? A cubic centimetre (cc) equals one millilitre. Engine displacement and syringe volumes are commonly given in cc. ### What is a US fluid ounce? The U.S. fluid ounce is 1/128 of a U.S. gallon, about 29.57 mL. It is a unit of volume: a fluid ounce of water weighs about one ounce, but other liquids do not. ### Quick mental conversion For a fast estimate, multiply cubic centimetres by about **0.034** to get US fluid ounces; the error is about 0.6%. Use the calculator above when you need the exact figure. ### Common mistakes to avoid Mixing u.s. and uk gallons, pints and fluid ounces, assuming a cup is always 250 ml, and treating volume and weight as interchangeable for anything except water. ## Worked example Inputs — Cubic centimetres: 30 cm³ (cc). Results — **US fluid ounces = 1.01442068 US fl oz**. ## FAQ **How many oz is 30 cc?** About 1.01 US fl oz. **How many cc in an ounce?** About 29.57 cc. **How many US fluid ounces are in one cubic centimetre?** 1 cm³ (cc) = 0.033814023 US fl oz. **How many cubic centimetres are in one US fluid ounce?** 1 US fl oz = 29.57353 cm³ (cc). **How do I convert cubic centimetres to US fluid ounces?** Multiply the number of cubic centimetres by 0.033814023. For example, 30 cm³ (cc) × 0.033814023 = 1.0144207 US fl oz. **How do I convert US fluid ounces back to cubic centimetres?** Divide by 0.033814023 (or multiply by 29.57353), or simply type the value into the US fluid ounces field above. **What is 10 cm³ (cc) in US fluid ounces?** 10 cm³ (cc) = 0.33814023 US fl oz. **What is 100 cm³ (cc) in US fluid ounces?** 100 cm³ (cc) = 3.3814023 US fl oz. **Is this conversion exact?** Yes. The factor comes from the official definitions of both units (NIST and the SI), so the only difference you may see is rounding in the last displayed digit. **Can I convert to other units on this page?** This page converts only between cubic centimetres and US fluid ounces. To pick any volume unit, use the general volume converter linked under Related calculators. **What formula does the cc to oz Converter use?** 1 cm³ (cc) = 0.033814023 US fl oz. ## Sources - [NIST Special Publication 811 – Guide for the Use of the International System of Units](https://www.nist.gov/pml/special-publication-811) - [NIST Handbook 44 Appendix C – General tables of units of measurement](https://www.nist.gov/pml/owm/nist-handbook-44-current-edition)