For the imperial system (pounds, inches): you first have to convert your weight and height in kg and cm.
Weight Conversion:
If you are 120 pounds, you multiply your weight by 0.45359237
120 pounds equals
0.45359237 x 120= 54,4kg
Height Conversion:
If you are 5’1:
first find your total inches (1 feet is 12 inches)
5’1 equals
5 *12 +1 right 61 inches.
Then convert inches to cm:
61 inches equals
61 * 2.54 = 154.94 cm