Tennis Grip Size Calculator

The Tennis Grip Size Calculator turns a single hand measurement into the exact racket grip size you should buy. Measure from the middle crease of your palm to the tip of your ring finger, and the tool converts that length into a US grip size (4" to 4 5/8"), the matching European L-size (L0–L5), and the handle circumference in millimetres — with an interactive gauge, an overgrip adjustment, and a full cross-reference chart.

How Tennis Grip Size Works

Grip size is simply the circumference of the racket handle. A larger number means a thicker handle. The clever part is that your ideal grip circumference is almost identical to the length of your hand measured a specific way — so one quick measurement tells you the size. Grips step in eighths of an inch, and every US size has a European equivalent.

How to Measure Your Grip Size (Ruler Method)

1. Open your playing hand flat, fingers together and extended.
2. Find the middle crease — the horizontal line that runs across the centre of your palm.
3. Measure straight up from that crease to the tip of your ring finger with a ruler or tape.
4. Read the length in inches (or centimetres) and enter it above. That number is your grip size.

The Index-Finger Check

Already holding a racket? Use the classic finger test. Grip the racket with an eastern forehand grip (palm on the same bevel as the string face). With your other hand, try to slide the index finger into the gap between your fingertips and the base of your palm:

• Index finger fits snugly → the grip is the right size.
• No room for the finger → the grip is too small; go up a size or add an overgrip.
• Loads of room → the grip is too large; go down a size.

US and European Grip Size Chart

What If I Am Between Two Sizes?

Always choose the smaller grip and build it up with an overgrip. A single overgrip adds about 1/16" to the handle, so you can fine-tune the feel exactly. It is easy to add material to a handle but effectively impossible to shave it down, so starting small keeps your options open. If you tick the overgrip box in the calculator, it automatically aims one sixteenth of an inch finer on the bare handle.

Why Grip Size Matters

The correct grip lets you hold the racket firmly but relaxed, switch grips smoothly between forehand, backhand, and serve, and play for longer without hand fatigue or strain.

Kids and Junior Grip Sizes

Junior rackets use smaller handles, usually grip size 0 (L0) or below. If your measurement comes out under 4", pick a junior racket sized to the child's height rather than forcing a full-size adult grip. As their hand grows, an overgrip can extend the life of a grip that is becoming a touch small.

How to Use This Calculator

1. Measure your hand from the middle palm crease to the ring-finger tip.
2. Enter the length and choose inches or centimetres.
3. Tick the overgrip box if you always play with an overgrip.
4. Read your result — US size, European L-size, and circumference in millimetres, plotted on the gauge with a full cross-reference chart.

Frequently Asked Questions

How do I measure my tennis grip size?

Open your dominant hand and hold it flat with the fingers together. Using a ruler, measure from the middle horizontal crease of your palm up to the tip of your ring finger. That length in inches is very close to your ideal grip circumference, so a hand measurement of 4 3/8 inches means a 4 3/8 inch (L3) grip.

What is the most common tennis grip size?

For adult men the most common grip size is 4 3/8 inches (L3), and for adult women it is 4 1/4 inches (L2). Juniors and players with small hands usually use 4 inches (L0) or 4 1/8 inches (L1). If you are unsure, most players are comfortable in the 4 1/4 to 4 3/8 inch range.

What is the difference between US and European grip sizes?

They describe the same handle. US sizes are given in inches of circumference (4 inches, 4 1/8, 4 1/4, and so on), while European sizes use an L number: L0 equals 4 inches, L1 equals 4 1/8 inches, L2 equals 4 1/4 inches, L3 equals 4 3/8 inches, L4 equals 4 1/2 inches, and L5 equals 4 5/8 inches.

What if I am between two grip sizes?

When your measurement falls between two sizes, choose the smaller grip and add an overgrip. An overgrip increases the handle by about 1/16 inch, which lets you fine-tune the feel. Going from a larger grip down to a smaller one is difficult, but building a smaller grip up is easy, so it is safer to start small.

Does an overgrip change my grip size?

Yes. A single overgrip adds roughly 1/16 inch to the handle circumference, and a replacement grip can add slightly more. If you always play with an overgrip, tick the overgrip option so the calculator recommends a base handle one sixteenth of an inch smaller.

Is a bigger or smaller tennis grip better?

The right grip is the one that fits your hand. A grip that is too small forces you to squeeze harder and can lead to tennis elbow, while a grip that is too large reduces wrist mobility and racket-head speed. As a quick check, with an eastern forehand grip you should be able to fit the index finger of your other hand in the gap between your fingertips and palm.

Additional Resources

• Racket (sports equipment) - Wikipedia
• Tennis - Wikipedia