Climbing level chart and conversion table.

CLIMBING GRADES						BOULDERING
French	UK	Australia	UIAA	USA		Hueco	UK	Font.*
1-2	HVD	8-9	I-II	5.2-5.3		-
2-3	MS	10-12	III	5.4-5.5		-
4	S	13-	IV	5.6		-
4+	VS	13+	V-	5.7		-
5a		14	V	5.8		-
5b	HVS	15	V+	5.9		V0	B1	4
6a	E1 5b	19	VI+	5.10a		V0+	B2	4+
6a+	E2 5c	19 / 20	VI+ / VII-	5.10b
6b		20	VII	5.10c		V1	B3	5
6b+	E3 5c	21	VII+	5.10d
6c		21 / 22	VII+ / VIII-	5.11a		V2	B4	6a
6c+	E4 6a	22	VIII-	5.11b		V3	B5-6	6a+
7a		23	VIII	5.11c/d		V4		6b/c
7a+	E5 6b	24	VIII / VIII+	5.12a
7b		25	VIII+	5.12b		V5		6c+
7b+	E6 6b	26	IX-	5.12c		V6	B7	7a
7c		27	IX	5.12d
7c+		28	IX / IX+	5.13a		V7	B8	7a+
8a	E7 6c	29	IX+	5.13b		V8	B9	7b+
8a+		30	X-	5.13c		V9		7c
8b	E8 7a	31	X	5.13d
8b+		32	X / X+	5.14a		V10	B10	7c+
8c	E9 7b	33	X+	5.14b		V11	B11	8a
8c+		34	XI-	5.14c		V12/13	B12	8a+
9a	E10 7c	35	XI	5.14d/5.15