String Tension Lab Calculator

D'Addario · Pure Nickel · 11-14-18-27-37-48

D'Addario EPN115 (11-14-18-27-37-48) in DADGAD on a 27" scale

11-48 Medium, XL Pure Nickel Electric Guitar Strings on an electric guitar with a 27" scale, tuned to DADGAD (D4 A3 G3 D3 A2 D2), pulls 123.4 lb56.0 kg549 N in total and 20.6 lb9.33 kg91 N per string on average. That is a tight feel for an electric guitar. The set is uneven (spread 17.7%). String 5 (A2) deviates most: +26% from the set average.

Total tension
123.4 lb56.0 kg549 N
Average per string
20.6 lb9.33 kg91 N
Feel
tight
medium ≈ 17.1 lb7.76 kg76 N per string
Set your own preferred feel
Balance
uneven
spread 17.7%

Tension per string

01020lb0510kg050100Nmedium (10-46)set average1D4.01117.5 lb7.92 kg78 N2A3.01415.9 lb7.19 kg71 N3G3.01820.9 lb9.47 kg93 N4D3.02724.7 lb11.20 kg110 N5A2.03725.8 lb11.71 kg115 N6D2.04818.7 lb8.48 kg83 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 Tensionvs avg
1D4293.7 .011PL011plain 17.5 lb7.92 kg78 N−15%
2A3220.0 .014PL014plain 15.9 lb7.19 kg71 N−23%
3G3196.0 .018PL018plain 20.9 lb9.47 kg93 N+1%
4D3146.8 .027PNG027wound 24.7 lb11.20 kg110 N+20%
5A2110.0 .037PNG037wound 25.8 lb11.71 kg115 N+26%
6D273.4 .048PNG048wound 18.7 lb8.48 kg83 N−9%
Total123.4 lb56.0 kg549 N

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Similar sets in DADGAD, 27"

SetGaugesAvg per stringTotalFeelBalance
D'Addario NYXL1149 11-14-18-28-38-4919.7 lb8.92 kg87 N 118.0 lb53.5 kg525 Ntightuneven
D'Addario EXL115 11-14-18-28-38-4919.7 lb8.95 kg88 N 118.3 lb53.7 kg526 Ntightuneven
D'Addario NYXL1052 10-13-17-30-42-5220.3 lb9.20 kg90 N 121.7 lb55.2 kg541 Ntightuneven
D'Addario EXL115BT 11-15-19-28-37-5020.5 lb9.28 kg91 N 122.8 lb55.7 kg546 Ntightuneven
EPN115 (this page) 11-14-18-27-37-4820.6 lb9.33 kg91 N 123.4 lb56.0 kg549 Ntightuneven
D'Addario NYXL1152 11-14-18-30-42-5221.5 lb9.76 kg96 N 129.1 lb58.6 kg574 Ntightuneven

Best match for a medium feel in DADGAD, 27"

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 12.8%, average 16.9 lb7.67 kg75 N, uneven
  2. D'Addario EPS510 10-13-17-26-36-46 deviation 15.5%, average 16.6 lb7.55 kg74 N, uneven; same gauges: NYXL1046, XSE1046, EXL110
  3. D'Addario NYXL1149 11-14-18-28-38-49 deviation 23.7%, average 19.7 lb8.92 kg87 N, uneven; same gauges: EXL115

More for the EPN115

Other tunings on 27": E standard, Drop D, Eb standard, D standard, Drop C, C standard, B standard, Open G, Open D

DADGAD on other scales: 24.75", 25", 25.5", 26.5", 28", 25.5"–27" multiscale

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.

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