3 cm = 30 ml 20 ml = 2 cm
2.1 mL - A cc (cubic centimeter, cm3) and a mL (milliliter) are equal to each other in terms of volume.
480 millilitres
Cubic centimetres and millilitres have the same magnitude, so a value in cubic centimetres is already a value in millilitres.
1 mL = 1 cm3, 1 mL being a measure of volume is equal to the same amount measured in area of 1 cm3