AltTuningLab
String setup

Compare guitar string tension

Test gauges, tunings, and scale lengths before you restring your guitar.

Total pull108.0 lb
Average / string15.4 lb
Tension spread5.6 lb
Instrument7-string
Tension calculator

Build the set from low to high

Change a value and the calculator updates the set.

Strings
Scale length
7
12.7lbLight
6
15.7lbWorking range
5
18.3lbWorking range
4
16.6lbWorking range
3
14.8lbWorking range
2
14.2lbWorking range
1
15.6lbWorking range
Set summary

.011–.070 / G1–D4

The set averages 15.4 lb per string with a 5.6 lb spread.

Reading the estimate

Tension uses pitch, speaking length, gauge, and construction. Wound strings vary by manufacturer, so compare these results as setup estimates rather than factory specifications.

Read the calculation methodology →
Instructions

Use the guitar string tension calculator

Use the calculator to compare guitar string gauges before changing tuning, ordering a custom set, or setting up a multiscale guitar.

  1. Choose your guitar.Select six, seven, or eight strings and start with the closest tuning preset.
  2. Enter the string gauges.Adjust each pitch, gauge, and plain or wound construction to match your planned set.
  3. Set the scale length.Use one scale for a standard guitar or individual string lengths for a multiscale instrument.
  4. Compare the results.Check each string, the average tension, and the spread across the set.

String tension and feel

String tension affects feel, pick response, and tuning stability. A heavier gauge or longer scale can firm up a lower pitch. A lighter gauge reduces the force needed for bends. Compare the full set to spot strings that feel much tighter or looser than the rest.