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Fret Position Calculator
Frets are spaced by the rule of eighteen, where each fret sits at the scale length divided by 2 to the power of the fret number over twelve. That is why frets get progressively closer together as you move up the neck.
How it works
Scale length
Fret number
Open string note
Open string octave
Distance from the nut
Distance from the bridge
Spacing from the previous fret
Note at this fret
Frequency at this fret
Semitones above the open string
Frequently asked questions
How do I use the Fret Position Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.