THE FEUTEX TOOLKIT

String Retuning Tension Ratio

Estimate relative string tension when changing pitch without changing the string or scale length.

Music workspace● Runs in your browser

01 Your input

Old hzHzNew hzHzOld tensionN

02 Your result

View or copy raw result data

Result data

FormulaRatio = Math.pow(new_hz/old_hz,2); New tension = old_tension*Math.pow(new_hz/old_hz,2)

Sources and model references

Made for real tasks

Estimate relative string tension when changing pitch without changing the string or scale length.
Compare two scenarios by changing the inputs and rerunning the tool.

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

Enter old hz, new hz, old tension.
Use consistent units shown beside each input. Run the calculation and review the assumptions below.

{
  "old_hz": 110,
  "new_hz": 98,
  "old_tension": 70
}

Ideal flexible string, fixed length and linear density; not a safe-tension recommendation for an instrument.

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.