String Tension Lab Calculator

D'Addario · XL Nickel · 9-11-16-26-36-46

D'Addario EXL125 (9-11-16-26-36-46) in E standard on a 25.5"–27" multiscale scale

09-46 Super Light Top/Regular Bottom, XL Nickel Electric Guitar Strings on an electric guitar with a 25.5"–27" multiscale scale, tuned to E standard (E4 B3 G3 D3 A2 E2), pulls 99.3 lb45.1 kg442 N in total and 16.6 lb7.51 kg74 N per string on average. That is a medium feel for an electric guitar. The set is uneven (spread 21.4%). String 2 (B3) deviates most: −32% from the set average.

Total tension
99.3 lb45.1 kg442 N
Average per string
16.6 lb7.51 kg74 N
Feel
medium
medium ≈ 17.1 lb7.76 kg76 N per string
Set your own preferred feel
Balance
uneven
spread 21.4%

Tension per string

05101520lb025810kg0255075100Nset averagemedium (10-46)1E4.00913.1 lb5.95 kg58 N2B3.01111.3 lb5.11 kg50 N3G3.01615.4 lb6.99 kg69 N4D3.02619.7 lb8.95 kg88 N5A2.03620.8 lb9.46 kg93 N6E2.04619.0 lb8.60 kg84 N
The bronze dashed line is the medium-feel target: the average per-string tension of a 10-46 set on a 25.5" scale in E standard (17.1 lb7.76 kg76 N). Loose and tight are measured against it.Line thickness follows the string gauge; textured lines are wound strings. Hover, tap or tab to a string for details.
#NoteHzGaugeItemType Length Tensionvs avg
1E4329.6 .009PL009plain 25.5" 13.1 lb5.95 kg58 N−21%
2B3246.9 .011PL011plain 25.8" 11.3 lb5.11 kg50 N−32%
3G3196.0 .016PL016plain 26.1" 15.4 lb6.99 kg69 N−7%
4D3146.8 .026NW026wound 26.4" 19.7 lb8.95 kg88 N+19%
5A2110.0 .036NW036wound 26.7" 20.8 lb9.46 kg93 N+26%
6E282.4 .046NW046wound 27" 19.0 lb8.60 kg84 N+15%
Total99.3 lb45.1 kg442 N

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Multiscale (fanned frets): string lengths change linearly from 25.5" (treble) to 27" (bass).

Similar sets in E standard, 25.5"–27" multiscale

SetGaugesAvg per stringTotalFeelBalance
D'Addario NYXL0946 9-11-16-26-36-4616.5 lb7.49 kg73 N 99.1 lb45.0 kg441 Nmediumuneven
EXL125 (this page) 9-11-16-26-36-4616.6 lb7.51 kg74 N 99.3 lb45.1 kg442 Nmediumuneven
D'Addario EPS510 10-13-17-26-36-4617.5 lb7.93 kg78 N 104.9 lb47.6 kg467 Nmediummoderately uneven
D'Addario EXL110BT 10-13.5-17-25-34-4617.8 lb8.08 kg79 N 106.9 lb48.5 kg476 Nmediumeven
D'Addario NYXL1046 10-13-17-26-36-4618.1 lb8.22 kg81 N 108.7 lb49.3 kg484 Nmediummoderately uneven
D'Addario XSE1046 10-13-17-26-36-4618.1 lb8.22 kg81 N 108.7 lb49.3 kg484 Nmediummoderately uneven

Best match for a medium feel in E standard, 25.5"–27" multiscale

Ranked by how close every string is to 17.1 lb7.76 kg76 N (lower deviation is better).

  1. D'Addario EXL110BT 10-13.5-17-25-34-46 deviation 7.3%, average 17.8 lb8.08 kg79 N, even
  2. D'Addario EPS510 10-13-17-26-36-46 deviation 7.6%, average 17.5 lb7.93 kg78 N, moderately uneven; same gauges: NYXL1046, XSE1046, EXL110
  3. D'Addario EXL120 9-11-16-24-32-42 deviation 17.5%, average 15.0 lb6.79 kg67 N, uneven; same gauges: NYXL0942

More for the EXL125

Other tunings on 25.5"–27" multiscale: Drop D

E standard on other scales: 26.5", 27", 28"

About these numbers

Tension is calculated, not measured: T = μ · (2 · L · f)², where μ is the string's mass per unit length (unit weight), L the vibrating length (scale) and f the pitch (A4 = 440 Hz, equal temperament). kg means kilogram-force: 1 kg ≈ 9.81 N ≈ 2.205 lb.

How a set feels also depends on the guitar's setup: action height, break angle over the nut and saddle, string length behind the nut and bridge, and your playing style. Plain strings feel stiffer than wound strings at the same tension. Use these figures to compare sets, not as an absolute measure of feel.

Sources