D'Addario · Chromes Flatwound · 11-15-22-30-40-50

D'Addario ECG24 (11-15-22-30-40-50) in Eb standard on a 25.5" scale

11-50 Jazz Light, XL Chromes Electric Guitar Strings on an electric guitar with a 25.5" scale, tuned to Eb standard (Eb4 Bb3 Gb3 Db3 Ab2 Eb2), pulls 128.9 lb58.5 kg573 N in total and 21.5 lb9.75 kg96 N per string on average. That is a tight feel for an electric guitar. The set is uneven (spread 14.4%). String 3 (Gb3) deviates most: +19% from the set average.

Total tension: 128.9 lb58.5 kg573 N
Average per string: 21.5 lb9.75 kg96 N
Feel: tight; medium ≈ 17.1 lb7.76 kg76 N per string; Set your own preferred feel
Balance: uneven; spread 14.4%

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	.011	PL011	plain	17.5 lb7.93 kg78 N	−19%
2	Bb3	233.1	.015	PL015	plain	18.3 lb8.29 kg81 N	−15%
3	Gb3	185.0	.022	CG022	flatwound	25.6 lb11.61 kg114 N	+19%
4	Db3	138.6	.030	CG030	flatwound	23.8 lb10.80 kg106 N	+11%
5	Ab2	103.8	.040	CG040	flatwound	24.0 lb10.88 kg107 N	+12%
6	Eb2	77.8	.050	CG050	flatwound	19.8 lb8.98 kg88 N	−8%
Total						128.9 lb58.5 kg573 N

Open in the calculator

Similar sets in Eb standard, 25.5"

Set	Gauges	Avg per string	Total	Feel	Balance
D'Addario NYXL1156	11-14-19-32-44-56	20.6 lb9.32 kg91 N	123.3 lb55.9 kg548 N	tight	uneven
D'Addario EXL117	11-14-19-32-44-56	20.6 lb9.35 kg92 N	123.7 lb56.1 kg550 N	tight	uneven
ECG24 (this page)	11-15-22-30-40-50	21.5 lb9.75 kg96 N	128.9 lb58.5 kg573 N	tight	uneven
D'Addario NYXL1254	12-16-20-32-42-54	21.7 lb9.85 kg97 N	130.3 lb59.1 kg579 N	tight	even
D'Addario EXL145	12-16-20-32-42-54	21.8 lb9.87 kg97 N	130.6 lb59.2 kg581 N	tight	even
D'Addario NYXL1260	12-16-20-34-46-60	23.7 lb10.74 kg105 N	142.0 lb64.4 kg632 N	tight	uneven

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

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

D'Addario NYXL1149 11-14-18-28-38-49 deviation 6.3%, average 17.4 lb7.87 kg77 N, even; same gauges: EXL115
D'Addario EXL115BT 11-15-19-28-37-50 deviation 6.5%, average 18.1 lb8.21 kg80 N, very even
D'Addario EPN115 11-14-18-27-37-48 deviation 11.3%, average 18.1 lb8.22 kg81 N, moderately uneven

More for the ECG24

Other tunings on 25.5": D standard, Drop C, C standard, Open D

Eb standard on other scales: 24.75", 25", 26.5", 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 ECG24 (2026-10-31): unit weights derived from the published tensions, cross-checked across sets.