[Tennis tension calculator]
Tennis string tension calculator.
Three questions for a suggested starting tension, based on your string type, ability level and playing style. Every racket and player is different, so adjust after a few sessions.
Suggested tension
Polyester is stiff and loses tension faster than softer strings, so it is usually strung lower. At intermediate level we stay in the string’s middle range. All-court play needs a balance of power and control.
Book at 50 lbs →We string on a constant-pull electronic machine. If your usual tension comes from a lockout (crank) machine, we’ll set ours about 10% lower to give the same feel. Just tell us your usual number.
Lower tension gives more power and comfort; higher gives more control. On hybrids the crosses are usually strung 2–3 lbs lower than the mains (never more than 5), and a polyester half a few pounds lower than a softer string.
[Tension guide]
How much tension should I use?
Choosing the right string tension can improve power, control, comfort and spin. Lower tensions generally provide more power and comfort, while higher tensions offer greater control and precision.
Most rackets recommend a range of roughly 50–60 lbs. Start in the middle of your racket’s range, then adjust by 2–3 lbs at a time. String type matters most: polyester is usually strung 2–4 lbs lower than a multifilament, synthetic gut a little lower than multifilament, and natural gut a little higher.
Starting tension by string type
| String type | Starting range |
|---|---|
| Polyester / co-poly | 48–52 lbs |
| Hybrid (poly + softer string) | 49–53 lbs |
| Synthetic gut | 50–54 lbs |
| Multifilament | 51–55 lbs |
| Natural gut | 52–56 lbs |
Then adjust for your game
| Player | Adjustment |
|---|---|
| Beginner (more power, bigger sweet spot) | −2 lbs |
| Advanced (more control) | +2 lbs |
| Big hitter / baseline | +2 lbs |
| Heavy topspin (polyester) | −2 lbs |
| Arm problems (and avoid polyester) | −3 to −5 lbs |
[Need advice?]
Every player is different.
If you’re unsure which string or tension is right for you, we’d be happy to help with personalised recommendations.
Contact us →