Guitar Fret Position Calculator
Fill in the values and the answer updates as you type.
How the Guitar Fret Position Calculator works
Distance from the nut = scale length − scale length ÷ 2^(fret ÷ 12), which is the equal-temperament rule. The 12th fret sits at exactly half the scale length. Common scale lengths are 648 mm (25.5 in, Fender style), 628 mm (24.75 in, Gibson style), and 650 mm for classical guitars. Real fretboards add a small compensation at the bridge for intonation. Example: with Scale length 648 mm, and Fret number 12, the result is Distance from nut to fret (mm) = 324; Distance from fret to bridge (mm) = 324; Gap from the previous fret (mm) = 19.27.
Inputs and results
The Guitar Fret Position Calculator takes 2 inputs and gives 4 results.
What you enter
- Scale length (mm) — starts at 648.
- Fret number — starts at 12.
What you get
- Distance from nut to fret (mm)
- Distance from fret to bridge (mm)
- Gap from the previous fret (mm)
- Distance from nut (inches)
Example: Guitar Fret Position Calculator with the starting values
With scale length 648 mm and fret number 12, the calculator returns:
| Distance from nut to fret (mm) | 324 |
|---|---|
| Distance from fret to bridge (mm) | 324 |
| Gap from the previous fret (mm) | 19.27 |
| Distance from nut (inches) | 12.76 |
Change any value above and the results update straight away.
Guitar Fret Position Calculator FAQ
How do I use the Guitar Fret Position Calculator?
Enter scale length and fret number in the fields, then read distance from nut to fret (mm), distance from fret to bridge (mm), gap from the previous fret (mm) and distance from nut (inches) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Guitar Fret Position Calculator calculate?
Distance from the nut to any fret for a given scale length. It returns distance from nut to fret (mm), distance from fret to bridge (mm), gap from the previous fret (mm) and distance from nut (inches) from the 2 values you provide.
What values does the Guitar Fret Position Calculator start with?
It opens with scale length 648 mm and fret number 12 so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Guitar Fret Position Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Guitar Fret Position Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.