Route & Problem Ratings

The different levels of climbing difficulty are defined by ratings.

Yosemite Decimal System

The sub-grade ranges from 1 to a theoretically infinite number (today the highest number is 15). The number is increased when a ‘harder’ climb is developed.

Sub-Grades (Yosemite Decimal System)

Easy 5.1-5.6
Intermediate 5.7-5.9
Difficult 5.10-5.11
Very Difficult 5.12-5.13
Expert 5.14-5.15

Suffix (Yosemite Decimal System)

A suffix is often found on grades 5.10 and higher.
Suffix have two traditional formats. Alphabetic suffix range are ‘a’,'b’,'c’ or ‘d’. 5.10a is the easiest 5.10. 5.10d is the hardest 5.10. The alternative is ‘+’, ‘-’. 5.10+ is a difficult 5.10 and 5.10- is an easier 5.10.

International Grading Systems

There are unique grading systems throughout the entire world. The following table compares them.

USA (YDS)

Bouldering Scale

Australia

France

UK

5.1 VB 4 1 M
5.2 VB 6 2 M
5.3 VB 6 2+ 3a VD
5.4 VB 8 3- 3b VD, 3B HVD
5.5 VB 10 3 3c HVD, 3c S
5.6 VB 12 3+ 4a S, 4a HS
5.7 VB 14 4 4a VS, 4b HS
5.8 VB 14, 16 4+ 4c VS
5.9 VB 16 5 4c HVS
5.10a VB 18 5+ 5b HVS
5.10b VB 19 6a 5a E1
5.10c VB 19,20 6a+ 5b E2
5.10d V0 20,21 6b 6a E2, 5C E3
5.11a V0 21 6b+ 6a E3
5.11b V1 22 6c 6a E4
5.11c V1 23 6c+ 6a E4, 6b E4
5.11d V2 23/24 7a 6b E4, 6a E5
5.12a V3 24 7a+ 6a E5, 6c E5
5.12b V4 25 7b 6c E5
5.12c V5 26 7b+ 6b E6
5.12d V6 27 7c 6c E6
5.13a V7 28 7c+ 6c E7
5.13b V8 29 8a 7a E7
5.13c V9 30 8a+ 6c E8
5.13d V10 31 8b 7a E8
5.14a V11 32 8b+ 7a E9
5.14b V12 33 8c 7b E9
5.14c V13 34 8c+ 7a E10
5.14d V14 35 9a 7b E10
5.15a V15 36 9a+ 7b E10
5.15b V16 37 9a+ 7b E10