Pick a grade to highlight its row, or just read across. Conversions between systems are
approximate by nature — treat them as a guide, not gospel.
Sport & roped grades
French
UK (typical)
YDS
UIAA
3
Mod/Diff
5.2
III
4a
VDiff/S 4a
5.5
IV
4b
S 4a
5.5
IV+
4c
HS 4b
5.6
V-
5a
HS/VS 4b
5.7
V
5b
VS 4c
5.8
V+
5c
HVS 5a
5.9
VI-
6a
HVS/E1 5b
5.10a
VI
6a+
E1 5b
5.10b
VI+
6b
E2 5c
5.10c
VII-
6b+
E2/E3 5c
5.10d
VII
6c
E3 6a
5.11a
VII+
6c+
E3/E4 6a
5.11b/c
VII+/VIII-
7a
E4 6a
5.11d
VIII-
7a+
E4/E5 6b
5.12a
VIII
7b
E5 6b
5.12b
VIII+
7b+
E5/E6 6b
5.12c
VIII+/IX-
7c
E6 6b
5.12d
IX-
7c+
E6/E7 6c
5.13a
IX
8a
E7 6c
5.13b
IX+
8a+
E7 7a
5.13c
X-
8b
E8 7a
5.13d
X
8b+
E9 7a
5.14a
X+
8c
E9/E10 7b
5.14b
X+/XI-
8c+
E10 7b
5.14c
XI-
9a
E10/E11 7b
5.14d
XI
9a+
E11 7c
5.15a
XI+
9b
E11 7c
5.15b
XII-
Bouldering grades
Font
V-grade
Notes
3
VB
Beginner
4
V0
4+
V0+
5
V1
5+
V1/V2
6A
V3
6A+
V3/V4
6B
V4
6B+
V4/V5
6C
V5
6C+
V5/V6
7A
V6
7A+
V7
7B
V8
7B+
V8/V9
7C
V9
7C+
V10
8A
V11
8A+
V12
8B
V13
8B+
V14
8C
V15
8C+
V16
Current top end of the scale
UK trad grades
UK trad uses two grades: the adjectival grade (overall difficulty, seriousness
and sustainedness) and the technical grade (hardest single move). A route that is
bold for the grade takes a higher adjectival grade at the same technical difficulty.