String Tension Lab Calculator

D'Addario · ProSteels · 10-13-17-26-36-46

D'Addario EPS510 (10-13-17-26-36-46) in Drop D on a 28" scale

10-46 Regular Light, XL ProSteels Electric Guitar Strings on an electric guitar with a 28" scale, tuned to Drop D (E4 B3 G3 D3 A2 D2), pulls 115.3 lb52.3 kg513 N in total and 19.2 lb8.72 kg85 N per string on average. That is a tight feel for an electric guitar. The set is moderately uneven (spread 10.6%). String 6 (D2) deviates most: −21% from the set average.

Total tension
115.3 lb52.3 kg513 N
Average per string
19.2 lb8.72 kg85 N
Feel
tight
medium ≈ 17.1 lb7.76 kg76 N per string
Set your own preferred feel
Balance
moderately uneven
spread 10.6%

Tension per string

05101520lb025810kg0255075100Nmedium (10-46)set average1E4.01019.5 lb8.87 kg87 N2B3.01318.6 lb8.43 kg83 N3G3.01720.0 lb9.09 kg89 N4D3.02620.5 lb9.30 kg91 N5A2.03621.5 lb9.74 kg96 N6D2.04615.1 lb6.86 kg67 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 .010PL010plain 19.5 lb8.87 kg87 N+2%
2B3246.9 .013PL013plain 18.6 lb8.43 kg83 N−3%
3G3196.0 .017PL017plain 20.0 lb9.09 kg89 N+4%
4D3146.8 .026PSG026wound 20.5 lb9.30 kg91 N+7%
5A2110.0 .036PSG036wound 21.5 lb9.74 kg96 N+12%
6D273.4 .046PSG046wound 15.1 lb6.86 kg67 N−21%
Total115.3 lb52.3 kg513 N

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Similar sets in Drop D, 28"

SetGaugesAvg per stringTotalFeelBalance
D'Addario EXL125 9-11-16-26-36-4618.0 lb8.17 kg80 N 108.1 lb49.0 kg481 Nmediumuneven
EPS510 (this page) 10-13-17-26-36-4619.2 lb8.72 kg85 N 115.3 lb52.3 kg513 Ntightmoderately uneven
D'Addario EXL110BT 10-13.5-17-25-34-4619.6 lb8.87 kg87 N 117.3 lb53.2 kg522 Ntightmoderately uneven
D'Addario NYXL1046 10-13-17-26-36-4619.9 lb9.02 kg88 N 119.3 lb54.1 kg530 Ntightmoderately uneven
D'Addario XSE1046 10-13-17-26-36-4619.9 lb9.02 kg88 N 119.3 lb54.1 kg530 Ntightmoderately uneven
D'Addario EXL110 10-13-17-26-36-4619.9 lb9.03 kg89 N 119.5 lb54.2 kg531 Ntightmoderately uneven

Best match for a medium feel in Drop D, 28"

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

  1. D'Addario EXL120BT 9-12-15-22-30-40 deviation 12.3%, average 15.4 lb7.00 kg69 N, moderately uneven
  2. D'Addario EXL120 9-11-16-24-32-42 deviation 13.9%, average 16.4 lb7.42 kg73 N, uneven; same gauges: NYXL0942
  3. D'Addario EXL110BT 10-13.5-17-25-34-46 deviation 17.0%, average 19.6 lb8.87 kg87 N, moderately uneven

More for the EPS510

Other tunings on 28": E standard, Eb standard, D standard, Drop C, C standard, Open G, Open D, DADGAD

Drop D on other scales: 24.75", 25", 25.5", 26.5", 27", 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.

Sources