Climbing Grade Converter illustration

Climbing Grade Converter

Converts route grades between the Yosemite Decimal System (5.6 – 5.15d), French sport grades, UIAA and Australian Ewbank numbers, and boulder grades between the American V-scale and Fontainebleau, with the complete conversion tables shown for reference.

Notes

  • Grade conversions are conventions, not exact math: benchmarks feel different between areas and rock types.
  • Font and V-scale diverge most in the mid grades; a Font 6C can feel like V4 or V5 depending on style.
  • Educational estimate for sport and training purposes, not professional coaching or medical advice.