AltTuningLab
Setup lab

Dial in your string tension.

Compare gauges, tunings, and scale lengths before your next setup.

Total pull94.4 lb
Average / string15.7 lb
Balance spread3.5 lb
Instrument6-string
Tension calculator

Build the set from low to high

Every change recalculates the set immediately.

Strings
Scale length
6
13.4lbWorking range
5
16.9lbWorking range
4
15.7lbWorking range
3
16.6lbWorking range
2
15.4lbWorking range
1
16.3lbWorking range
Set readout

.048–.010 / D2–E4

The set averages 15.7 lb per string with a 3.5 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.

Quick instructions

How to 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 complete set.

Why guitar string tension matters

String tension changes how firmly a string feels, responds to picking, and holds pitch. Lower tunings usually need a heavier gauge or longer scale length to avoid excessive looseness, while lighter gauges can make bends easier. Comparing the full set helps you find a more consistent feel without making one string unexpectedly tight or slack.