mL to cc Converter
Convert between milliliters (mL) and cubic centimeters (cc) — they are the same unit, so the number never changes. Enter a value to confirm the cc/mL equivalence and see teaspoons and fluid ounces for context.
Example: with Value 5 · Direction mL → cc → Result: 5 cc.
- In teaspoons1.014 tsp
- In fluid ounces0.169 fl oz
- Why they match5 mL = 5 cc (1 mL = 1 cc = 1 cm³, exact)
Computed by the calculator below using its default values. Change any input to see your own numbers.
1 mL = 1 cc = 1 cm³ exactly — a cubic centimeter is defined as one milliliter. Syringes marked cc and mL measure the very same volume.
Two names, one volume
A cubic centimeter is defined as the volume of a cube one centimeter on a side, and by definition that equals exactly one milliliter — a thousandth of a liter. So there is nothing to convert: 5 mL is 5 cc, 250 mL is 250 cc. The two labels survive side by side mostly out of habit, with 'cc' common in medicine and older recipes and 'mL' standard in science and on most modern packaging.
That is why a syringe stamped 10 cc and one stamped 10 mL hold the same amount. Where people get tripped up is assuming cc relates to teaspoons or ounces the same way — it does not; those are separate volume units, shown here for a sense of scale.
How it’s calculated
1 mL = 1 cc = 1 cm³ by definition, so the value is unchanged in either direction. For context: teaspoons = mL ÷ 4.92892 and fluid ounces = mL ÷ 29.5735 (US, NIST).
The mL/cc equality is exact and universal. Teaspoon and fluid-ounce equivalents use US customary definitions and are approximate for everyday reference. Not medical advice.
mL / cc with common equivalents
| mL (= cc) | Teaspoons | Fluid ounces |
|---|---|---|
| 1 | 0.203 | 0.034 |
| 5 | 1.014 | 0.169 |
| 15 | 3.043 | 0.507 |
| 30 | 6.087 | 1.014 |
| 250 | 50.72 | 8.454 |
1 mL = 1 cc = 1 cm³ (exact); 1 tsp = 4.92892 mL, 1 fl oz = 29.5735 mL (NIST).
Common mistakes
- Thinking cc and mL need converting — they are identical.
- Assuming cc equals a teaspoon; a teaspoon is about 4.93 cc.
- Confusing cc with cubic inches — 1 cubic inch is about 16.39 cc.
- Expecting a syringe's cc marks to differ from its mL marks.
Frequently asked questions
Is mL the same as cc?
Yes, exactly. One milliliter equals one cubic centimeter, which equals one cm³. The number does not change between them.
Why do syringes say cc and mL?
It is historical labeling. Medicine long used cc while science and packaging use mL, but both mark the identical volume, so they are interchangeable.
How many cc are in a teaspoon?
About 4.93 cc in a US teaspoon. So 5 cc is just over one teaspoon.
Does this apply to medical dosing?
The cc/mL equality is exact, so a device marked either way is fine. For actual doses, still follow the pharmacy's markings and instructions.