Guitar Fret Optimizer

Precision fret positioning with temperament compensation

Temperament Settings

Interval Ratios

Guitar Setup

String Physical Properties ▼

String Open Freq (Hz) Mass/Length (kg/m) Young's Mod (Pa) Cross-Sect (in²)

String Action & Displacement ▼

String Action @ Nut (in) Action @ 12th (in) Displacement (in)

Optimizing fret positions...

Optimization Complete

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Max Error (cents)
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Avg Error (cents)
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Iterations
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Status

Detailed Results

Fret Positions
Aligned Positions
Pitch Errors
Frequencies
Adjustments
Comparison

Compensated fret positions (mm from nut) - these produce correct pitch when fretted

Aligned fret positions after 3rd fret alignment to D string reference

Error from desired temperament in cents (+ = sharp, - = flat)

Target vs Achieved frequencies (Hz)

String tensions, scale lengths, and setup adjustments

Theoretical vs Compensated positions for D string (base string)

Optimization Log ▼