Resources

Resources

Fretboard calculator

Work out fret positions for a given scale length, based on equal temperament. Distances from the nut, from the bridge and between frets, with print and CSV export.

Preset
Fret no.From nut (mm)From bridge (mm)To next fret (mm)
121.33358.6720.13
241.46338.5419.00
360.46319.5417.93
478.39301.6116.93
595.32284.6815.98
6111.30268.7015.08
7126.38253.6214.23
8140.62239.3813.44
9154.05225.9512.68
10166.73213.2711.97
11178.70201.3011.30
12190.00190.0010.66
13200.66179.3410.07
14210.73169.279.50
15220.23159.778.97
16229.20150.808.46
17237.66142.347.99
18245.65134.357.54
19253.19126.817.12
20260.31119.696.72
21267.03112.976.34
22273.37106.635.98
23279.35100.655.65
24285.0095.005.33

Iterative equal-temperament method: the vibrating length is reduced by a factor of 21/12 at each fret. Full-precision computation, values rounded to two decimals in the table.