Tennis Racket grip size?

Question

how big are racket sizes 1, 2 and 3 in inches?

Answer 1

#1 = 4 1/8 inch

#2 = 4 1/4 inch

#3 = 4 3/8 inch

Answer 2

The other poster is correct but this is only a ballpark figure.  What I mean is that different brands feel larger or smaller, for the same handle size.

For example, Wilson and Babolat racquets have a more rounded grip so feel small.  Head racquets on the other hand have a rectangular grip and feel larger (from personal experience).

You really have to go to a shop to try the various brands's racquets in your preferred grip size to make the correct choice.  Good luck!