How to measure tennis grip size
Hold your hitting hand flat with the fingers together. Lay a ruler from the bottom crease that runs across your palm up to the tip of your index finger. That length is your grip size in inches.
Check it with a racquet in hand: grip it normally, and the index finger of your other hand should just fit in the gap between your fingertips and the base of your thumb. No room means the grip is too small. Lots of room means too big.
Between two sizes
An overgrip adds about 1/16 of an inch, roughly half a size. That is why many players who fall between sizes pick the smaller grip and build it up, since a grip cannot be made smaller. Kids on junior racquets use smaller grips than this chart covers.
Questions
Can I guess my grip size from my height?
Not reliably. Hand size varies too much, which is why the measurement and the finger test are the standard checks.
Are grip sizes the same in Europe?
Europe numbers grips 1 to 5 the same way but measures in millimeters: size 3 is 111.1 mm. Pick centimeters above to enter a metric measurement.
Does a grip that is too small cause problems?
A grip that is too small or too large makes you squeeze harder to control the racquet. If the arm hurts after playing, have a coach or pro check your grip size.
Is my data stored?
No. The math runs in your browser and nothing you type is sent anywhere or put in analytics.
Sources
Formulas and rules checked against these sources on October 28, 2026. Leagues and associations change their rules, so when your league's rulebook differs, follow your league.