Fret Calculator for CBG Builders: Easy and Accurate

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Need help laying out your frets with accuracy? This Fret Calculator is designed for guitar builders, luthiers, and DIY enthusiasts who want quick, precise fret spacing for any scale length. Whether you’re building a standard electric guitar or a custom cigar box project, this tool handles it all – supports inches and millimetres, includes optional bridge compensation, and lets you export or print your results in a clean format.
More details on this tool? Check out our dedicated post.

Fret Calculator

Bridge Compensation is an optional adjustment that slightly increases the scale length to account for string tension and action height. It helps improve intonation by pushing the bridge a bit farther back, ensuring more accurate pitch at higher frets. Enter a small value (like 0.5 or 1.0 mm) if your build requires fine-tuning.