Presently, Olympic plates of 10 kilograms (22 lb) or more are 450 millimetres (18 in) in diameter.

Subsequently, question is, what weights are used in the Olympics? Weight classes

55 kg (121 lb) (non-Olympic) 61 kg (134 lb) 67 kg (148 lb) 73 kg (161 lb) 81 kg (179 lb) 89 kg (196 lb) (non-Olympic) 96 kg (212 lb) 102 kg (225 lb) (non-Olympic)

Also to know is, what is the size of a 45 lb Olympic plate?

45lb Olympic Plate Diameter A 45 lb plate diameter measurement is supposed to be 450mm (17.72″). This is the IPF (International Powerlifting Federation) and IWF (International Weightlifting Federation) regulation size.

Do all weights fit all bars?

The Different Sizes of Weight Plates They fit all commercial bars and most plate loaded gym equipment ranges such as our Sterling range. Standard Discs generally considered for most home gyms, only have a 1 diameter hole. Standard weight plates will not fit on an Olympic bar.