D'Addario · XL Nickel Balanced Tension · 9-12-15-22-30-40

D'Addario EXL120BT (9-12-15-22-30-40) in Eb standard on a 28" scale

09-40 Super Light Balanced Tension, XL Nickel Electric Guitar Strings on an electric guitar with a 28" scale, tuned to Eb standard (Eb4 Bb3 Gb3 Db3 Ab2 Eb2), pulls 85.5 lb38.8 kg380 N in total and 14.2 lb6.46 kg63 N per string on average. That is a loose feel for an electric guitar. The set is very even (spread 2.3%). String 5 (Ab2) deviates most: +5% from the set average.

Total tension: 85.5 lb38.8 kg380 N
Average per string: 14.2 lb6.46 kg63 N
Feel: loose; medium ≈ 17.1 lb7.76 kg76 N per string; Set your own preferred feel
Balance: very even; spread 2.3%

Tension per string

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.

#	Note	Hz	Gauge	Item	Type	Tension	vs avg
1	Eb4	311.1	.009	PL009	plain	14.1 lb6.39 kg63 N	−1%
2	Bb3	233.1	.012	PL012	plain	14.1 lb6.40 kg63 N	−1%
3	Gb3	185.0	.015	PL015	plain	13.9 lb6.30 kg62 N	−3%
4	Db3	138.6	.022	NW022	wound	14.3 lb6.49 kg64 N	+0%
5	Ab2	103.8	.030	NW030	wound	14.9 lb6.77 kg66 N	+5%
6	Eb2	77.8	.040	NW040	wound	14.2 lb6.44 kg63 N	−0%
Total						85.5 lb38.8 kg380 N

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Similar sets in Eb standard, 28"

Set	Gauges	Avg per string	Total	Feel	Balance
EXL120BT (this page)	9-12-15-22-30-40	14.2 lb6.46 kg63 N	85.5 lb38.8 kg380 N	loose	very even
D'Addario NYXL0942	9-11-16-24-32-42	15.1 lb6.84 kg67 N	90.5 lb41.1 kg403 N	loose	moderately uneven
D'Addario EXL120	9-11-16-24-32-42	15.1 lb6.86 kg67 N	90.7 lb41.1 kg403 N	loose	moderately uneven
D'Addario NYXL0946	9-11-16-26-36-46	16.6 lb7.55 kg74 N	99.9 lb45.3 kg444 N	medium	uneven
D'Addario EXL125	9-11-16-26-36-46	16.7 lb7.57 kg74 N	100.1 lb45.4 kg445 N	medium	uneven
D'Addario EPS510	10-13-17-26-36-46	17.7 lb8.03 kg79 N	106.2 lb48.2 kg472 N	medium	even

Best match for a medium feel in Eb standard, 28"

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

D'Addario EXL110BT 10-13.5-17-25-34-46 deviation 6.0%, average 18.0 lb8.18 kg80 N, very even
D'Addario EPS510 10-13-17-26-36-46 deviation 6.1%, average 17.7 lb8.03 kg79 N, even; same gauges: NYXL1046, XSE1046, EXL110
D'Addario EXL120 9-11-16-24-32-42 deviation 15.4%, average 15.1 lb6.86 kg67 N, moderately uneven; same gauges: NYXL0942

More for the EXL120BT

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

Eb standard on other scales: 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

D'Addario product page, tension chart for EXL120BT (2026-10-31): unit weights derived from the published tensions, cross-checked across sets.