What size tennis racket do I need?

For an adult, there is only one length

The standard adult tennis racket is 27 inches long and effectively every frame sold to adults is that length. There is no small, medium or large. If you are an adult asking what size racket you need, the honest answer is that the length is already decided and the question you actually need answered is a different one.

A handful of frames are built slightly longer — extended-length rackets at 27.25 or 27.75 inches, which trade a little control for extra reach and leverage on the serve. The HEAD Titanium Ti.S6 in our registry is one, at 27.75 inches, and the Prince O3 Legacy 120 is another at 27.25. These are specialist choices for players managing arm pain or wanting free power, not a sizing decision.

So for an adult, three other specifications stand in for size, and all three are real decisions with wrong answers.

• Grip size — the circumference of the handle, from 4 inches to 4 5/8 inches. This is the only one that is genuinely a fitting question, and the only one you cannot adjust downward later.
• Head size — the area of the hoop, roughly 95 to 120 square inches. Larger is more forgiving, smaller is more precise.
• Weight — roughly 244 to 320 g strung on the frames in our registry. Heavier is more stable, lighter is faster to swing.

Each has its own guide: tennis racket grip size, tennis racket head size and how much should a tennis racket weigh. If you want all three resolved at once, how to choose a tennis racket is the page that puts them in order.

For a child, size is length and length is set by height

Junior rackets are sold by length in inches, and they step up in roughly one-inch increments from 19 inches to 26 inches before reaching a full 27-inch adult frame. Every chart you will find maps those lengths to ages, and every one of those charts is a proxy for the thing that actually matters, which is height.

Tennis Warehouse publish both figures for the frames in our registry, and the pairing shows how the proxy works: they size the 25-inch Pure Drive Junior to ages 9 to 10 and heights of 50 to 55 inches, and the 26-inch to ages 11 and up and heights of 55 inches and over. Where a child's age and height disagree, go with height.

The two rows we can cite directly are the 25-inch and 26-inch ones, because those are the frames we carry and the figures are the retailer's own. The shorter lengths follow the same ladder and we have labelled them as typical rather than quoting a source we do not have.

The test that beats every chart

There is a physical check that takes five seconds and is more reliable than any table, because it measures the child and the racket together rather than looking the child up in a list.

1. 01Have the child stand upright with their arm hanging straight down at their side.
2. 02Put the racket in their hand, head down, so the butt cap is in their palm and the frame points at the floor.
3. 03Look at the gap between the top of the hoop and the ground. Roughly an inch is right. Touching the floor means the racket is too long; a hand's width of air means it is too short.

The reason this works is that it measures arm length rather than standing height, and arm length is what actually sets how much racket a child can control. Two eight-year-olds the same height can want different lengths, and this test catches that where a chart cannot.

When a junior moves to an adult racket

The jump from 26 inches to 27 is the only step on the ladder where length is not the main change. It is one inch, which is barely noticeable. What changes is weight, and that change can be large.

The 26-inch Pure Drive Junior in our registry is 250 g strung. A typical adult performance frame is 300 to 320 g — the Babolat Pure Drive 2025 is 318 g — which is nearly a third more mass to swing. Handing a 13-year-old a 318 g frame because they have outgrown 26 inches is how you get a shortened swing and a sore shoulder.

The route that works is to move to a light adult frame first, then add weight over a year or two as they get stronger. The HEAD Speed MP UL 2026 at 278 g with a 291 swingweight and the Babolat Pure Drive Lite 2025 at 283 g are both built for exactly this transition, and both are in our registry.

Our best tennis rackets for juniors and teens page covers the junior ladder with picks at each rung, and racquet sports skill levels explained describes what a developing player's rallies look like at each stage so you can tell where they actually are.

How this guide was put together

We do not run a test lab and nothing here is written as though we did. This guide is built from the published specification sheets and third-party lab measurements cited at the foot of the page, plus the physical reasoning that connects them. Where a figure is not published we say so rather than estimating it.

The picks below are drawn from our product registry, so every one carries a cited source and a verified listing. Our full selection criteria set out the method and the editorial policy covers corrections. No price is written into this page — the figure on each buy button is the live one.