String tension calculator
Most club players are best served by 22–25 lbs (10–11.3 kg); beginners by 19–22 lbs. Tell the calculator your level, style, string and racket and it narrows that to a range you can hand to your stringer.
Printed on the frame or shaft, e.g. “20–28 lbs”.
Recommended tension
22–25lbs
Start at 23.5 lbs (10.7 kg) and adjust by 1 lb at a time.
- Intermediate: a typical range is 22–25 lbs.
lbs ↔ kg converter
1 lb = 0.4536 kg · 1 kg = 2.2046 lbs.
This badminton string tension calculator starts from the range typical for your level and adjusts it for how you play, your string and the hall you play in, then caps it at your racket's maximum. The short answer: lower tension is more forgiving and gives easier depth; higher tension gives more control and a crisper feel, but only rewards you if you hit the centre of the strings consistently.
Badminton string tension chart
| Level | Typical tension (lbs) | Typical tension (kg) |
|---|---|---|
| New to badminton (school, family, park) | 17–20 lbs | 7.7–9.1 kg |
| Beginner (learning the clear and smash) | 19–22 lbs | 8.6–10.0 kg |
| Intermediate (regular club player) | 22–25 lbs | 10.0–11.3 kg |
| Advanced (league / tournament) | 25–28 lbs | 11.3–12.7 kg |
| Elite (national level and up) | 27–31 lbs | 12.2–14.1 kg |
These are common starting points used by stringers and coaches, not rules. Two players of the same level can be happy 3 lbs apart. Pre-strung rackets bought off the shelf are often strung at the low end of this chart, which is why they feel soft once you improve.
Higher vs lower tension: the trade-offs
| Lower tension | Higher tension | |
|---|---|---|
| Sweet spot | Larger, forgiving | Smaller, punishing off-centre |
| Depth on clears | Easier | Needs good technique |
| Control and feel | Softer, less precise | Crisp, precise |
| String life | Longer | Breaks sooner |
| Arm strain | Less | More, especially on mistimed hits |
| Frame stress | Lower | Higher |
The trap is copying the pros. Elite players string high because their swing is fast and their contact is clean, so they trade a little power for precision. For a player still finding the sweet spot, high tension just shrinks it: more frames, more wooden-sounding shots, shorter clears and a sorer elbow.
Badminton string tension for beginners
If you are new, start around 19–22 lbs. You will get the shuttle to the back of the court with less effort and fewer mishits will die in the net. Move up a pound or two at a time only when you are consistently hitting the centre and want the shuttle to go exactly where you aim. Our badminton tips for beginners cover the technique side.
String gauge, climate and your racket's limit
- Gauge. Thinner strings (around 0.61–0.65 mm) feel crisper and bite the shuttle more but break sooner. Thicker ones (around 0.68–0.70 mm) last longer. If you snap strings every few weeks, go thicker before you go lower.
- Climate. A common rule of thumb is to string about 1 lb lower for a cold hall and about 1 lb higher in heat and humidity. Strings also lose some tension in the first days after stringing, whatever the weather.
- Racket maximum. Every frame has a recommended range printed on it, such as "20–28 lbs".
Choosing a new frame too? The racket finder matches weight, balance, flex and grip to your game, and how to choose a badminton racket explains each spec.
Strings lose tension: what that means for you
The number you ask for is the tension the machine pulls, not what the strings will be in a month. Strings relax most in the first days and keep losing tension slowly after that, faster in heat. If a fresh restring at your usual tension suddenly feels tight and lively, that's why your old strings felt soft: they had dropped. If you play a lot, regular restringing keeps the feel consistent, and a consistent feel matters more than the exact number.
A badminton string tension guide in three steps
- Use the calculator to get a range and start in the middle.
- Play at least three sessions before judging; new strings settle.
- Shuttle flying long and feeling uncontrolled? Go 1 lb up. Clears dropping short and contact feeling harsh? Go 1 lb down. You can check your smash with the smash speed calculator.
Frequently asked questions
What string tension should I use for badminton?
Most recreational and club players do best between about 20 and 25 lbs (9–11.3 kg). Beginners usually start around 19–22 lbs, advanced players 25–28 lbs and elite players higher. Never go above the maximum printed on your racket.
Is higher string tension better in badminton?
Only if your technique is ready for it. Higher tension gives more control and a crisper feel but a smaller sweet spot, more string breakage and more stress on your arm. For most players a moderate tension produces better shots.
How do I convert badminton string tension from lbs to kg?
Multiply pounds by 0.4536. For example, 24 lbs is 10.9 kg and 26 lbs is 11.8 kg. To go from kg to lbs, multiply by 2.2046.
Does lower string tension give more power?
It gives easier power: the string bed flexes more, so off-centre and slower swings still send the shuttle deep. Players with a fast, clean swing often prefer higher tension because they generate the speed themselves and want the control.
What happens if I string above my racket's maximum tension?
You risk cracking or deforming the frame, and it may void the warranty. Choose a racket rated for the tension you want instead.
How often should I restring my badminton racket?
A common rule of thumb is as many times a year as you play per week, and immediately when a string breaks. Strings lose tension over time even if they don't snap.
Stop guessing. Start seeing.
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