Equipment · Strings
Tennis string tension: how to choose the right one
Tennis string tension generally ranges from 20 to 28 kg (about 44 to 62 lb), and most regular players string between 23 and 26 kg. One rule to remember: the lower the tension, the more powerful and comfortable the racquet; the higher it is, the more precise but demanding. Start from the range recommended by your racquet’s manufacturer, then adjust for your style and string type.
Key takeaways
- Low tension (under 23 kg / 50 lb): more power and comfort, less control.
- High tension (over 26 kg / 57 lb): more control and precision, less power, more strain on the arm.
- Beginners: around 22 to 24 kg (48 to 53 lb) for easy hitting and a protected arm.
- The string matters: a stiff polyester is strung lower than a multifilament for the same feel.
- Adjust in steps of 1 kg (2 lb) and always stay within the range printed on your racquet frame.
What is tennis string tension and what does it change?
String tension is the force with which each string is pulled across the frame during stringing. It is expressed in kilograms or pounds (1 kg ≈ 2.2 lb, so 25 kg is about 55 lb). It directly shapes how the string bed behaves.
- Low tension (under 23 kg): the strings deform more at impact and return more energy. The ball travels further with less effort, and the arm absorbs less vibration.
- High tension (over 26 kg): the string bed is stiffer, the ball spends less time on the strings and its trajectory is more predictable. You place the ball better, but you have to generate the pace yourself.
| Tension | Power | Control | Comfort | Who for? |
|---|---|---|---|---|
| 20 to 23 kg (44 to 50 lb) | High | Lower | High | Beginners, sensitive arms, players looking for depth |
| 23 to 26 kg (50 to 57 lb) | Balanced | Balanced | Good | Most regular players |
| 26 to 28 kg and above (57 to 62 lb+) | Lower | High | Lower | Advanced players who hit hard and want precision |
Which tension suits your playing style?
The way you play determines the right setting. Ask yourself: do my balls lack length, or do they fly long too often?
You want more power
A lower tension, between 20 and 24 kg, is recommended. The strings deform more on impact and return more energy to the ball: ideal for long, deep shots without forcing. The trade-off: less precise control, and balls that may fly long if you already hit hard.
You want more control
If you prioritise precision and placement, go for a higher tension, from 26 kg (up to 28-30 kg for some very advanced players). The stiffer string bed lets you fine-tune your shots, but you have to work harder to create pace, and your arm takes more strain.
To see how these principles apply at the top level, look at the set-ups of Alcaraz, Djokovic or Sinner in our article on pro players’ strings and tension.
Which tension for which type of string?
The same tension does not feel the same with every string, so adapt the setting to the material.
| String | Feel | Tension advice |
|---|---|---|
| Multifilament | Soft, forgiving, absorbs vibration well | Handles a slightly higher tension while keeping power; usually 22 to 25 kg |
| Polyester monofilament | Stiff, lots of control, durable | String it lower to offset the stiffness |
| Hybrid | Balance of control and power | Set it for the dominant string; crosses often 1 to 2 kg below the mains |
To understand materials and how they affect your game, start with our guide to tennis racquet strings. For mixed set-ups, read our article on hybrid strings.
Temperature, surface, level: other factors to consider
- Temperature: in hot weather the ball is livelier and the strings more responsive, so some players raise their tension slightly to keep control. In cold weather the ball is slower and the strings stiffer: a slightly lower tension helps restore power.
- Surface: on clay, where the game is slower, a lower tension helps you generate length. On fast courts, a higher tension gives control and precision.
- Your level: a beginner wants easy power and comfort; an advanced player, who swings faster, often prefers a little more control. Let your setting evolve as you improve.
- The racquet: every frame shows a recommended tension range. Do not go beyond it, or you risk poorer performance and even damage to the frame.
Too high a tension or too stiff a string tires the arm. If your elbow hurts, lower the tension and switch to a softer string; see also our article on racquets and tennis elbow.
AdultsFull daysAll levelsPerformance Camp AdultA week of intensive tennis, 4 players per coach: technique, match play, physical and mental training.DISCOVER Does string tension last?
No: every string relaxes after stringing, then over hours of play. Polyester loses tension faster than multifilament or natural gut. A very tight, stiff string bed also wears faster, while a lower tension tends to preserve it. When the strings feel “dead” and your balls start flying, it is time to restring: all the signs to look out for are in our article on restringing your racquet.
On a camp at the Mouratoglou Academy, coaches often suggest a tension tweak after watching a player: balls flying long, a tiring arm, a loss of control late in the session. The Mouratoglou Method always starts from the real player, not a standard setting. To go further, compare with the choices made by professional players.
Frequently asked questions
What string tension should a beginner use?
A fairly low tension, around 22 to 24 kg (48 to 53 lb). It makes power easier, shots less demanding and protects the arm. Pair it with a soft string such as nylon or multifilament.
How do I know if my tension is too low?
If your balls often fly long and you struggle to control your shots, the tension is probably too low, or the strings have relaxed over time. Conversely, if you lack length and feel shock in your arm, it is probably too high.
24 or 25 kg: what is the difference?
One extra kilo gives a slightly firmer string bed: a bit more control, a bit less power. A regular player will notice it, but the difference is subtle, which is why you adjust in 1 kg steps.
Should I change my tension as I improve?
Yes. As their racquet-head speed increases, many players raise their tension slightly to keep control. A beginner, on the other hand, should first look for power and comfort with a lower tension.
What tension should I use for an intensive tennis camp?
Keep your usual tension, but restring just before: over several days of intensive play, strings that have already lost tension distort your feel. If you play polyester, a slightly lower tension spares your arm. Bring a second racquet strung identically. On the Performance Camp Adult, the volume of play makes this genuinely important.
