GuitarMath

Affiliate disclosure

GuitarMath is free because of ads and affiliate links.

GuitarMath is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate GuitarMath earns from qualifying purchases.

When you buy through a gear link on this site, we may earn a small commission at no extra cost to you. Links that can earn us money are marked as sponsored in the page code and sit in clearly labeled gear sections.

How we choose gear

We recommend gear that solves the problem the tool just helped you figure out: a power supply big enough for your board, strings for the tension you want, a capo that holds tuning. Commissions never change a calculator's results.

The site may also show ads served by Google. See our privacy policy for how that works.

Last updated November 14, 2026.