The following chart compares most of the available grading scales. A mistake often made is to combine the Australian & South African grades as the same, in fact they are about a grade apart and even more at the upper grades. The Old SA grading was used in many of the older traditional climbing areas but is seldom used today. It is very difficult to compare the bouldering grading systems to the route grading systems.

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[…] Grade: The level of difficulty of a climb. There are a few different grading systems out there. The main ones used in South Africa are the French system for bouldering, and the Australian system for sports climbing. A more comprehensive list can be found HERE. […]