Grip size changes comfort, control, and how much your arm has to work. This guide explains the sizes and gives you an on-screen tool to measure your hand. Treat every number as approximate guidance, not a precise fitting.
What grip size means
Grip size is the circumference of the handle. It is labelled two ways: a European L-number (L0–L5) and a US measurement in inches. The bigger the number, the thicker the handle.
EU to US size mapping (approximate)
EU
US
Hand measurement
L0
4"
100–103 mm
L1
4 1/8"
103–106 mm
L2
4 1/4"
106–110 mm
L3
4 3/8"
110–113 mm
L4
4 1/2"
113–118 mm
L5
4 5/8"
>118 mm
Hand measurement is the distance from your middle palm crease to the tip of your ring finger. Ranges are approximate and overlap between sizes — use them as a starting point.
Why grip size matters
The wrong grip size makes you work harder and can raise injury risk. A grip that is too small forces extra squeezing, which tires the forearm and is linked to tennis elbow. A grip that is too large reduces wrist mobility and can add shoulder strain on the serve. When in doubt, sizing slightly down is easier to correct with an overgrip.
The one-finger check
Hold the racket in a forehand grip. There should be room for one finger of your other hand between your fingertips and the base of your palm. No room means the grip is too small; lots of room means it is too large.
The ruler method
Open your hand. Measure from the middle (lateral) crease of your palm to the tip of your ring finger in millimetres, then match the number to the table above. The on-screen tool below does the same thing using your screen.
Measure on your screen
First calibrate your screen so it knows how big a millimetre is, then use the ruler to measure your hand. This is approximate — always confirm with the one-finger check.
I already measured
If you have a tape measure, enter your hand measurement in millimetres for an instant size.
mm
Step 1
1. Calibrate your screen
Credit-card calibration
Hold any standard bank or credit card flat against your screen and adjust the outline until it matches the card's width exactly. Standard cards are 85.6 mm wide.
85.6 mm
Phone model (approximate)
On a phone, pick your model to estimate the screen scale. This is less precise than the card method.
Select your phone…
Not calibrated yet — choose a method above.
Step 2
2. Measure your hand
Rest the base crease of your palm at the baseline below, then drag the marker to the tip of your ring finger. Keep your hand flat against the screen.
Drag to your ring-finger tip
Calibrate above first, then drag the marker — the millimetre readout stays hidden until the ruler is calibrated.
Palm crease baseline
On a desktop you can calibrate with a card and measure by holding your hand against the monitor — be honest that this is rough. Entering a tape-measured value above is the most reliable path.