String Tension Lab Calculator

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

D'Addario EXL117 (11-14-19-32-44-56) in D standard on a 25.5" scale

11-56 Medium Top/Extra Heavy Bottom, XL Nickel Electric Guitar Strings on an electric guitar with a 25.5" scale, tuned to D standard (D4 A3 F3 C3 G2 D2), pulls 110.2 lb50.0 kg490 N in total and 18.4 lb8.33 kg82 N per string on average. That is a tight feel for an electric guitar. The set is uneven (spread 17.1%). String 2 (A3) deviates most: −23% from the set average.

Total tension
110.2 lb50.0 kg490 N
Average per string
18.4 lb8.33 kg82 N
Feel
tight
medium ≈ 17.1 lb7.76 kg76 N per string
Set your own preferred feel
Balance
uneven
spread 17.1%

Tension per string

05101520lb025810kg0255075100Nmedium (10-46)set average1D4.01115.6 lb7.06 kg69 N2A3.01414.1 lb6.41 kg63 N3F3.01916.4 lb7.45 kg73 N4C3.03221.9 lb9.94 kg98 N5G2.04422.1 lb10.03 kg98 N6D2.05620.0 lb9.08 kg89 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 15.6 lb7.06 kg69 N−15%
2A3220.0 .014PL014plain 14.1 lb6.41 kg63 N−23%
3F3174.6 .019PL019plain 16.4 lb7.45 kg73 N−11%
4C3130.8 .032NW032wound 21.9 lb9.94 kg98 N+19%
5G298.0 .044NW044wound 22.1 lb10.03 kg98 N+20%
6D273.4 .056NW056wound 20.0 lb9.08 kg89 N+9%
Total110.2 lb50.0 kg490 N

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Similar sets in D standard, 25.5"

SetGaugesAvg per stringTotalFeelBalance
D'Addario EXL116 11-14-18-30-42-5216.9 lb7.65 kg75 N 101.2 lb45.9 kg450 Nmediumuneven
D'Addario NYXL1156 11-14-19-32-44-5618.3 lb8.30 kg81 N 109.8 lb49.8 kg489 Nmediumuneven
EXL117 (this page) 11-14-19-32-44-5618.4 lb8.33 kg82 N 110.2 lb50.0 kg490 Ntightuneven
D'Addario ECG24 11-15-22-30-40-5019.1 lb8.68 kg85 N 114.9 lb52.1 kg511 Ntightuneven
D'Addario NYXL1254 12-16-20-32-42-5419.3 lb8.77 kg86 N 116.1 lb52.6 kg516 Ntighteven
D'Addario EXL145 12-16-20-32-42-5419.4 lb8.80 kg86 N 116.3 lb52.8 kg518 Ntighteven

Best match for a medium feel in D standard, 25.5"

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

  1. D'Addario EXL115BT 11-15-19-28-37-50 deviation 6.2%, average 16.1 lb7.31 kg72 N, very even
  2. D'Addario EPN115 11-14-18-27-37-48 deviation 10.2%, average 16.2 lb7.33 kg72 N, moderately uneven
  3. D'Addario EXL115 11-14-18-28-38-49 deviation 10.9%, average 15.5 lb7.03 kg69 N, even; same gauges: NYXL1149

More for the EXL117

Other tunings on 25.5": E standard, Drop D, Eb standard, Drop C, C standard, Open G, Open D, DADGAD

D standard on other scales: 24.75", 25", 26.5", 27", 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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