Question: 1 plate how many kg?
Answer: Plate sizes Commonly available plates with kilogram denominations are 1.25, 2.5, 5, 10, 15, and 20 kilograms, with 0.5, 7.5, and 25 kilogram plates less commonly seen. Common Olympic (2-inch center hole) plate denominations are 2.5, 5, 10, 25, 35, and 45 lbs, with 1.25 and 100 pound discs less commonly seen.