YDS to UIAA grade conversion chart
Every YDS grade with its UIAA equivalent, side by side. Where the two scales don't line up, you'll see a range.
Key conversions
- 5.9 = V+/VI
- 5.10a = VI/VI+
- 5.10d = VII+
- 5.11c = VIII−/VIII
- 5.12a = VIII+
- 5.12c = IX−
- 5.13a = IX+
- 5.13d = X+
- 5.14a = X+/XI−
- 5.15a = XI/XI+
| 5.6 | IV/ | 4a/ | 13 |
|---|---|---|---|
| 5.7 | IV+/ | 4b/ | 14/ |
| 5.8 | V/ | 4c+/ | 16 |
| 5.9 | V+/ | 5b/ | 17 |
| 5.10a | VI/ | 5c/ | 18 |
| 5.10b | VII− | 6a+ | 19 |
| 5.10c | VII | 6b | 20 |
| 5.10d | VII+ | 6b+ | 20 |
| 5.11a | VII+/ | 6b+/ | 21 |
| 5.11b | VII+/ | 6c/ | 22 |
| 5.11c | VIII−/ | 6c+/ | 23 |
| 5.11d | VIII/ | 7a/ | 23/ |
| 5.12a | VIII+ | 7a+ | 24 |
| 5.12b | VIII+/ | 7b | 25 |
| 5.12c | IX− | 7b+ | 26 |
| 5.12d | IX | 7c | 27 |
| 5.13a | IX+ | 7c+ | 28 |
| 5.13b | X− | 8a | 29 |
| 5.13c | X | 8a+ | 30 |
| 5.13d | X+ | 8b | 31 |
| 5.14a | X+/ | 8b+ | 32 |
| 5.14b | XI− | 8c | 33 |
| 5.14c | XI | 8c+ | 34 |
| 5.14d | XI | 9a | 35 |
| 5.15a | XI/ | 9a+ | 36 |
| 5.15b | XI+ | 9b | 37 |
| 5.15c | XI+/ | 9b+ | 38 |
| 5.15d | XII− | 9c | 39 |
Approximate. Conversions by OpenBeta sandbag; British from RockFax/theCrag tables.
About these grades
The Yosemite Decimal System (YDS) is used in North America. Roped climbs run from 5.0 to 5.15d, with letters a to d from 5.10 up.
UIAA grades are used in Germany, Austria and the Alps, written in Roman numerals (VI+, VII−) up to XII.