About

Sandpaper Grit is a set of free reference tools for people who sand things — woodworkers, car painters, metal finishers and anyone standing in a hardware shop holding two sheets with the same number and wondering why they feel different.

The grit and micron figures follow published ANSI/CAMI and FEPA values. Where the two systems disagree, the site shows both rather than picking one, because the disagreement is the useful part.

Every tool runs in your browser. Nothing you type is sent anywhere, and there is no sign-up.

If you find a figure that is wrong, email hello@sandpapergritchart.com with the grit, the source and what you expected.