What size is a 37 inch tire in metric?

See the table for sizes between 36.5" and 37.5".

What wheel sizes come with 37 inch tires?

37" tall tires are made for 17", 18", 20", 22" wheels. A bigger wheel means a shorter sidewall for the same overall height.

Tire sizes with an overall diameter between 36.5" and 37.5", grouped by wheel size. "37 inch tire" means the overall height, not the wheel.

Size	Diameter	Width	Sidewall
37x12.50R17	37.00"	12.50"	10.00"
37x13.50R17	37.00"	13.50"	10.00"

Size	Diameter	Width	Sidewall
37x12.50R18	37.00"	12.50"	9.50"
37x13.50R18	37.00"	13.50"	9.50"

Size	Diameter	Width	Sidewall
37x12.50R20	37.00"	12.50"	8.50"
37x13.50R20	37.00"	13.50"	8.50"

Size	Diameter	Width	Sidewall
37x13.50R22	37.00"	13.50"	7.50"

What size is a 37 inch tire in metric?: See the table for sizes between 36.5" and 37.5".
What wheel sizes come with 37 inch tires?: 37" tall tires are made for 17", 18", 20", 22" wheels. A bigger wheel means a shorter sidewall for the same overall height.