What is cubic centimetre?

A cubic centimetre is a metric unit of volume equal to one thousandth of a litre, or 1 millilitre. It is used in medicine, engine displacement specifications, and precise scientific measurements.

Real-world uses

Cubic centimetres are used for engine displacement (e.g., a 250 cc motorcycle engine), medical syringe volumes (often marked "cc"), and laboratory measurements. Small container volumes and 3D printing material estimates are expressed in cm³.

History

The cubic centimetre was the standard volume unit in the CGS system. The abbreviation "cc" became entrenched in automotive and medical fields. The JCAHO (now The Joint Commission) recommended against "cc" in medical prescriptions to reduce errors, though it persists.

Common mistakes

Using "cc" interchangeably with mL is technically acceptable (they are equal), but some medical institutions discourage "cc" because it can be misread as "00" in handwritten prescriptions.

What is millilitre?

A millilitre is a metric unit of volume equal to one thousandth of a litre. It is commonly used in medicine, cooking, laboratory measurements, and the labelling of food and beverage products.

Real-world uses

Millilitres are used for medication dosages (cough syrup, injectable solutions), cooking measurements, cosmetic product volumes, and laboratory reagent quantities. A standard medical syringe is graduated in mL, and espresso shots are typically 25–30 mL.

History

The millilitre emerged naturally from the litre with metric prefix conventions. It became essential in medicine and laboratory science where precise small-volume measurements are critical. In medical contexts, "cc" (cubic centimetre) was long used interchangeably with mL.

Common mistakes

Confusing millilitres with cubic centimetres—they are numerically equal (1 mL = 1 cm³) but conceptually different units. Also, mixing up mL with mg; one is volume, the other is mass.

When is this conversion used?

Converting cubic centimetre to millilitre is useful in the volume domain when comparing values across different measurement standards or applying formulas that require a specific unit.

Worked examples

1 cubic centimetre = 1 millilitre

1 millilitre = 0.001 litre

How to convert cubic centimetre to millilitre

To convert cubic centimetre to millilitre, multiply the value by 1.

To convert millilitre back to cubic centimetre, multiply by 1.

Measurement standards

The cubic metre is the SI derived unit of volume. The litre, equal to exactly one cubic decimetre (0.001 m³), is accepted by the BIPM for use alongside SI units. Both the lowercase "l" and uppercase "L" are approved symbols for the litre.

Did you know?

An Olympic swimming pool holds 2,500 cubic metres of water — about 2.5 million litres. The Amazon River discharges roughly 209,000 cubic metres per second, enough to fill 84 Olympic pools every single second.

Quick reference: cubic centimetre to millilitre

cubic centimetremillilitre
0.10.1
0.50.5
11
22
55
1010
2525
5050
100100
250250
500500
1,0001,000

Common values

cubic centimetremillilitre
A teaspoon5 cubic centimetre5 millilitre
A cup of coffee250 cubic centimetre250 millilitre
A water bottle500 cubic centimetre500 millilitre
A bathtub300,000 cubic centimetre300,000 millilitre
A swimming pool (Olympic)2.500000e+09 cubic centimetre2.500000e+09 millilitre