String Tension Lab Calculator

D'Addario · XL Nickel · 11-14-19-32-44-56

D'Addario EXL117 (11-14-19-32-44-56) in Drop D on a 25" scale

11-56 Medium Top/Extra Heavy Bottom, XL Nickel Electric Guitar Strings on an electric guitar with a 25" scale, tuned to Drop D (E4 B3 G3 D3 A2 D2), pulls 128.4 lb58.3 kg571 N in total and 21.4 lb9.71 kg95 N per string on average. That is a tight feel for an electric guitar. The set is uneven (spread 17.8%). String 5 (A2) deviates most: +25% from the set average.

Total tension
128.4 lb58.3 kg571 N
Average per string
21.4 lb9.71 kg95 N
Feel
tight
medium ≈ 17.1 lb7.76 kg76 N per string
Set your own preferred feel
Balance
uneven
spread 17.8%

Tension per string

01020lb0510kg050100Nmedium (10-46)set average1E4.01118.9 lb8.55 kg84 N2B3.01417.1 lb7.77 kg76 N3G3.01919.9 lb9.02 kg88 N4D3.03226.5 lb12.04 kg118 N5A2.04426.8 lb12.15 kg119 N6D2.05619.2 lb8.73 kg86 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
1E4329.6 .011PL011plain 18.9 lb8.55 kg84 N−12%
2B3246.9 .014PL014plain 17.1 lb7.77 kg76 N−20%
3G3196.0 .019PL019plain 19.9 lb9.02 kg88 N−7%
4D3146.8 .032NW032wound 26.5 lb12.04 kg118 N+24%
5A2110.0 .044NW044wound 26.8 lb12.15 kg119 N+25%
6D273.4 .056NW056wound 19.2 lb8.73 kg86 N−10%
Total128.4 lb58.3 kg571 N

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Similar sets in Drop D, 25"

SetGaugesAvg per stringTotalFeelBalance
D'Addario EXL116 11-14-18-30-42-5219.7 lb8.95 kg88 N 118.4 lb53.7 kg527 Ntightuneven
D'Addario NYXL1156 11-14-19-32-44-5621.3 lb9.68 kg95 N 128.1 lb58.1 kg570 Ntightuneven
EXL117 (this page) 11-14-19-32-44-5621.4 lb9.71 kg95 N 128.4 lb58.3 kg571 Ntightuneven
D'Addario ECG24 11-15-22-30-40-5022.4 lb10.18 kg100 N 134.7 lb61.1 kg599 Ntightuneven
D'Addario NYXL1254 12-16-20-32-42-5422.6 lb10.27 kg101 N 135.9 lb61.6 kg604 Ntightmoderately uneven
D'Addario EXL145 12-16-20-32-42-5422.7 lb10.30 kg101 N 136.2 lb61.8 kg606 Ntightmoderately uneven

Best match for a medium feel in Drop D, 25"

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 11.5%, average 15.6 lb7.07 kg69 N, moderately uneven
  2. D'Addario EXL110 10-13-17-26-36-46 deviation 12.7%, average 15.9 lb7.20 kg71 N, moderately uneven; same gauges: NYXL1046, XSE1046, EPS510
  3. D'Addario NYXL1149 11-14-18-28-38-49 deviation 13.0%, average 18.1 lb8.21 kg81 N, moderately uneven; same gauges: EXL115

More for the EXL117

Other tunings on 25": E standard, Eb standard, D standard, Drop C, Open G, Open D, DADGAD

Drop D on other scales: 24.75", 25.5"

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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