So when you get a new racket, once you have decided on head size, weight, balance, should you really worry about something as trivial as the grip size? Also what do the different grip sizes mean. Well yes you should worry about the grip size. Too small a grip could lead you to gripping the racket too tightly which can lead to tennis elbow - and believe me you don't want that. Too big and you won't be able to grip it properly. So what do the grip sizes mean and which is right for you? Often you will see the grip size referred to as anything from 0 to 6. The number refers to the number of eights of an inch over 4 inches. So a grip size 1 is 4 1/8 inch, a grip size 2 is 4 1/4 inch - this being the circumference of the grip. There are a couple of ways to get the right grip size. First you can measure from the bottom lateral crease to the top of you ring finger. Secondly if you grip a racket you should be able to get your finger between the index finger and your palm (see photo above). So don't just go for any grip size - it really is important.