What do each number in the tire size represent?

Question

What do each number in the tire size represent?

Answer 1

P 225 / 60  z 16

P - means 'p' metric size tire

225 - 225 mm tread width

60 - aspect ratio - the heighth of the tire is equal to 60% of the tread width

Z - is the speed rating and indicates the top speed the tire will endure over an extended period.

16 -  wheel rim size in inches

Answer 2

in easy terms      first number is how tall..... the second how wide    the last the wheel  size