Free Online Printable Fret Calculator

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Calculates & prints fret board layouts for string instruments

No Registration Required.

Guitar Fret Calculator

For Guitars, 4 String Cigar Box Guitars and 3 String CBGs, Mandolins, Ukeleles and more.

Tap in a few dimensions from your neck and hey presto!

Based upon the trusted FretFind2D, this does not just calculate fret spacing, it models the entire fretboard, strings and frets, as a system of line segments on a two dimensional plane.

Because of this approach, it can design fretboards for instruments with multiple scale lengths and non-parallel frets as well as fretboards for instruments that play just or meantone scales.

Note: If you print onto drafting film, it will remain stable and not shrink or grow with moisture etc.

All credit for the maths goes to Aaron Spike. I just tidied up the visual look.