Free climbing tools

Simple tools for climbers, free and with no account. Built for Belgian gyms and crags, useful anywhere.

Climbing grade converter
Convert a route or boulder grade between French, YDS, UIAA, British, Australian, Font and V-scale systems.
Open the tool
Grade pyramid calculator
Pick a target grade and see how many sends you need at each grade below it, and what is still missing.
Open the tool

This page is also available in:Français Nederlands

Altivio on your phone

Your logbook, your partners and your sessions, in the free app.

Download on the App Store Get it on Google Play