>>9385566there's two number, e.g. in OP, 5'10", the first number is called feet, the second is called inches
one foot is 12 inches, so to make feet inches, multiply it by 12. That leaves us with 60 inches in addition to the 10, add those together for OP's equivalent to equal 70 inches. To convert inches to cm, multiply it by 2.54. 70*2.54 is about 177 or so, and that is OP's measurement, from feet and inches, to centimeters.