cc to mL Converter
A cubic centimeter and a milliliter are exactly the same volume, so 1 cc always equals 1 mL. Enter a value in cc to confirm the milliliters and to see it in teaspoons, US fluid ounces, and liters.
Example: with Volume in cc (cm³) 5 → Milliliters: 5 mL.
- US teaspoons1.01 tsp
- US fluid ounces0.17 fl oz
- Liters0.005 L
Computed by the calculator below using its default values. Change any input to see your own numbers.
1 cc = 1 mL exactly, by definition (1 cm³ = 1 mL). The conversion is identity; the other rows just restate the same volume in kitchen and clinical units.
Why cc and mL are interchangeable
The milliliter is defined as one-thousandth of a liter, and a liter is exactly 1,000 cubic centimeters. That makes one milliliter equal to one cubic centimeter with no rounding — the two are the same unit under different names. 'cc' comes from the older cubic-centimeter usage common in medicine, while 'mL' is the SI-preferred label you see on measuring cups and syringes.
Because the conversion is one to one, a 5 cc dose and a 5 mL dose are identical, and a 10 cc syringe holds 10 mL. The only reason this page exists is that the two names appear side by side on prescriptions and equipment, and people reasonably want to confirm they are not missing a hidden factor.
How it’s calculated
1 cc (cubic centimeter) = 1 mL exactly. Secondary conversions use NIST factors: 1 US teaspoon = 4.92892 mL, 1 US fluid ounce = 29.5735 mL, and 1 liter = 1,000 mL.
Applies to fluid volume only. cc and mL measure volume, not weight — converting to grams needs the fluid's density, which this tool does not apply here.
cc to mL and everyday volume units
| cc (mL) | US teaspoons | US fluid ounces |
|---|---|---|
| 1 cc | 0.20 tsp | 0.03 fl oz |
| 5 cc | 1.01 tsp | 0.17 fl oz |
| 15 cc | 3.04 tsp | 0.51 fl oz |
| 30 cc | 6.09 tsp | 1.01 fl oz |
| 250 cc | 50.72 tsp | 8.45 fl oz |
Computed with 1 cc = 1 mL, 1 tsp = 4.92892 mL, 1 fl oz = 29.5735 mL.
Common mistakes
- Thinking cc and mL differ by some factor — they are identical, 1 to 1.
- Converting cc to grams by treating them as equal; that only holds for water at ~4 °C.
- Mixing US and imperial fluid ounces — this page uses the US fluid ounce (29.5735 mL).
- Reading a syringe in cc as if it were fluid ounces and overdosing by roughly 30 times.
Frequently asked questions
Is 1 cc the same as 1 mL?
Yes, exactly. One cubic centimeter equals one milliliter by definition, with no conversion factor. A 10 cc syringe and a 10 mL syringe hold the same volume.
Why do cc and mL both exist?
They label the same unit. 'cc' is the older cubic-centimeter name still common in medicine, while 'mL' is the SI-preferred term on measuring tools. Seeing both can make people worry they differ, but they do not.
How many cc are in a teaspoon?
About 4.93 cc, since one US teaspoon is 4.92892 mL and cc equals mL. A tablespoon is roughly 14.79 cc.
Can I convert cc to grams here?
Not directly — cc is volume and grams is weight. You need the substance's density. Water is close to 1 gram per cc, but oil, sugar, and powders differ, so use a cc-to-grams tool for those.