CC to mL Converter

Why 1 cc = 1 mL

The litre was originally defined in 1795 as the volume of one cubic decimetre (1 dm³). Because one decimetre equals ten centimetres, one cubic decimetre equals 1,000 cubic centimetres. Since there are 1,000 millilitres in a litre, one cubic centimetre equals exactly one millilitre. This relationship has been confirmed in successive SI revisions and is exact with no rounding involved.

The abbreviation "cc" comes from the Latin "centimetrum cubicum" and is especially common in medical and engineering settings. Doctors prescribe doses in cc, syringe volumes are marked in cc, and engine displacements are described in cc (or the larger unit of cubic centimetres, where 1,000 cc = 1 litre). Scientists and cooks generally prefer mL, but the numerical value is identical.

How to Convert cc to mL

Because 1 cc = 1 mL exactly, the conversion formula is:

mL = cc × 1

There is no multiplication or division required. You simply carry the number across. For example:

• 5 cc = 5 mL
• 30 cc = 30 mL
• 250 cc = 250 mL
• 1,000 cc = 1,000 mL = 1 litre

Converting to Other Units

Once you know the volume in mL (= cc), you can convert to other units:

Worked Example

A doctor prescribes a 100 cc dose of oral medication. How many millilitres is this, and how does it compare to common household measures?

• 100 cc = 100 mL (exact)
• = 0.1 litres
• = 3.38 US fluid ounces
• = 20.29 US teaspoons
• = 6.76 US tablespoons

This matches the default output of the calculator above.

Common Uses of CC and mL

• Medicine: Syringe capacities, injection doses, and oral medication volumes are commonly expressed in cc or mL.
• Engine displacement: A 1,600 cc engine has a displacement of 1.6 litres (1,600 mL).
• Cooking: Recipes may call for mL, which equals cc if you are measuring with a syringe or lab equipment.
• Laboratory science: Graduated cylinders, beakers, and pipettes are marked in mL, which equals cc for water and most liquids.

Related Calculators

• Essential Calculators: the full hub of converter and utility tools.
• mL to Grams Calculator: convert millilitres to grams for common substances.
• Volume Conversion Calculator: convert between litres, gallons, cups, and more.
• Ounces to Millilitres Converter: convert fluid ounces to mL.
• Grams to Ounces Calculator: convert grams to ounces for weight measurements.

Sources and method: Conversion factors from the International Bureau of Weights and Measures (BIPM), SI Brochure, 9th edition. 1 litre = 1 dm³ = 1,000 cm³ = 1,000 mL (exact). US fluid ounce: 1 fl oz = 29.5735295625 mL (exact per US customary definition). US teaspoon: 1 tsp = 4.92892159375 mL (exact). US tablespoon: 1 tbsp = 14.78676478125 mL (exact).

This converter provides exact results for cc to mL (1:1 ratio) and high-precision results for other unit conversions using standard SI and US customary definitions. All conversions are for liquid volume measurement.