If your your palm-to-finger measurement is about 10.5 cm (4 1/8 in), go with a Grip size 1 (4 1/8 in). Tennis grip size is the distance from your palm crease to the tip of your ring finger. Too small causes wrist strain; too large reduces control.
| Your palm-to-finger measurement | Recommended size |
|---|---|
| about 10.0 cm (4 in) | Grip size 0 (4 in) Common for juniors. |
| about 10.5 cm (4 1/8 in) | Grip size 1 (4 1/8 in) |
| about 10.8 cm (4 1/4 in) | Grip size 2 (4 1/4 in) Most common women size. |
| about 11.1 cm (4 3/8 in) | Grip size 3 (4 3/8 in) Most common men size. |
| about 11.6 cm (4 1/2 in) | Grip size 4 (4 1/2 in) |
| about 12.0 cm (4 5/8 in) | Grip size 5 (4 5/8 in) |
| Between sizes | Choose the smaller grip; you can build it up with an overgrip. |
| Two-handed backhand | A slightly smaller grip can help wrist action. |