Last updated: March 2, 2026 by Maria Gonzalez

Rock Climbing Grading Systems

Formula

Approximate conversions between grading systems.
Exact mappings depend on style and context.

Different countries use different grading systems for rock climbing difficulty. The most common are YDS (Yosemite Decimal System) used in North America, French grades used in Europe, and the UIAA system.

Bouldering uses the V-scale (Hueco scale) or Font scale. Converting between systems helps climbers understand route difficulty when traveling or reading international guidebooks.

Common use cases:

  • Converting grades when traveling internationally
  • Understanding guidebook ratings
  • Setting training goals across systems

Frequently Asked Questions

MG

Maria Gonzalez

Registered Dietitian, RD, MPH

Maria is a Registered Dietitian with a Master's in Public Health. She focuses on evidence-based nutrition assessment tools including BMI, calorie calculations, and body composition analysis.

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