Cubic centimeter (cc) and milliliter (mL) are both units of volume and are equivalent to each other.
1 cc is equal to 1 mL. This means that both units measure the same volume.
So, when you say 0.25 cc, it’s directly the same as 0.25 mL. No conversion factor is needed between these two units of volume. This relationship holds true in both the metric system and in most scientific contexts where volume is being measured.
Example:
If you have 0.25 cc of liquid, it would occupy the same space as 0.25 mL of liquid. Whether you’re using a syringe, a pipette, or measuring a substance in a lab, the volume would be identical in both cases.
Conversion formula:
            Volume in mL=Volume in cc
So for 0.25 cc, it’s simply 0.25 mL.