mL to cc: A 1:1 Conversion
Converting milliliters to cubic centimeters is the simplest conversion you will ever perform: 1 mL = 1 cc, exactly. These two units represent the identical volume. The milliliter (mL) is the SI-standard name, while the cubic centimeter (cc or cm³) is the geometric name for the same quantity — the volume of a cube measuring 1 cm on each side.
This page exists because people frequently encounter both units in different contexts and want to confirm that they are indeed interchangeable. Whether you are translating a medication dosage, reading an engine specification, or interpreting a lab report, 5 mL is always 5 cc, and 500 mL is always 500 cc.
When You Encounter mL and Need cc
Several common scenarios bring people to this conversion. In pharmaceutical and medical contexts, you might receive a prescription written in mL but need to measure it with a syringe marked in cc (or vice versa). Rest assured: a 3 mL dose drawn in a syringe labeled in cc will show exactly 3 cc. No math is required.
In laboratory settings, older equipment, glassware, and reference materials may use cc, while modern protocols and publications use mL. When cross-referencing sources, knowing that the units are identical prevents unnecessary confusion and unit-conversion errors.
In automotive discussions, engine displacement is traditionally stated in cc (for example, a 2000 cc engine). But if you are comparing this to a volume in mL or liters for any reason, the conversion is direct: 2000 cc = 2000 mL = 2.0 liters.
Pharmaceutical Dosing: mL and cc in Practice
In pharmacies and hospitals, liquid medications are measured in mL. Common syringe sizes include 1 mL, 3 mL, 5 mL, 10 mL, 20 mL, and 60 mL. Some older or specialized syringes are labeled in cc. A nurse drawing 2.5 mL of medication into a syringe marked in cc will draw to the 2.5 cc line — the amount is identical.
The Joint Commission (a US healthcare accreditation organization) has recommended that medical professionals use mL rather than cc to avoid potential misinterpretation, especially in handwritten orders. Despite this, cc remains common in practice, particularly in veterinary medicine and in countries outside the US.
Laboratory Measurements
Scientific laboratories use a range of glassware — beakers, graduated cylinders, volumetric flasks, and pipettes — all calibrated in mL. However, older textbooks and some specialized equipment still reference cc. When recording experimental data, it is standard practice to use mL in modern publications.
In analytical chemistry, extremely precise measurements may use microliters (μL), where 1 μL = 0.001 mL = 0.001 cc. The relationship holds at every scale: micro, milli, and beyond. Understanding that cc and mL are identical simplifies working with any source material, regardless of which notation it uses.
Quick Volume Reference
Here are some everyday volume equivalents to help put cc and mL in perspective:
- 1 teaspoon = approximately 4.93 mL (4.93 cc)
- 1 tablespoon = approximately 14.79 mL (14.79 cc)
- 1 US fluid ounce = approximately 29.57 mL (29.57 cc)
- 1 US cup = approximately 236.59 mL (236.59 cc)
- 1 liter = 1000 mL (1000 cc)
Conversion Table
| Milliliters (mL) | Cubic Centimeters (cc) |
|---|---|
| 0.1 mL | 0.1 cc |
| 0.25 mL | 0.25 cc |
| 0.5 mL | 0.5 cc |
| 1 mL | 1 cc |
| 2 mL | 2 cc |
| 3 mL | 3 cc |
| 5 mL | 5 cc |
| 10 mL | 10 cc |
| 15 mL | 15 cc |
| 20 mL | 20 cc |
| 25 mL | 25 cc |
| 50 mL | 50 cc |
| 75 mL | 75 cc |
| 100 mL | 100 cc |
| 150 mL | 150 cc |
| 200 mL | 200 cc |
| 250 mL | 250 cc |
| 500 mL | 500 cc |
| 750 mL | 750 cc |
| 1000 mL | 1000 cc |
Recent Cases
Facts
- The SI system officially equated 1 mL to 1 cm³ (1 cc) in 1964.
- mL is the preferred notation in modern science, medicine, and cooking.
- Engine displacement in cc: a Formula 1 car has a 1600 cc (1.6 L) engine as of 2014 regulations.
- The smallest commonly used syringe is 0.3 mL (0.3 cc), used for insulin injections.
- Both mL and cc are one-millionth of a cubic meter.
Frequently Asked Questions
1 mL is exactly 1 cc. Milliliters and cubic centimeters are identical units of volume. The conversion factor is always 1:1 regardless of what substance is being measured.
Both labels mean exactly the same volume. Older syringes and those manufactured for certain markets use cc, while newer ones and those following international standards use mL. A 5 cc syringe holds exactly the same volume as a 5 mL syringe.
Use mL in scientific papers, cooking recipes, and international contexts, as it is the SI standard. Use cc when communicating in medical settings that still follow that convention, or when discussing engine displacement in automotive contexts. Both are correct and interchangeable.
Divide milliliters by 1000 to get liters. For example, 500 mL = 0.5 liters, and 1500 mL = 1.5 liters. Since 1 cc = 1 mL, the same rule applies to cc: 500 cc = 0.5 liters.
Yes. cm3 (cubic centimeter written in scientific notation), cc (the abbreviation), and mL (milliliter) all represent the exact same volume. Scientists often write cm3, engineers and doctors use cc, and everyday measurements use mL, but they are all identical.