bouldering to climbing grades
Climbing grades and bouldering grades use different systems to indicate the difficulty of routes, but the grades measure distinct challenges due to the nature of each discipline. While climbing grades typically refer to the endurance and sustained difficulty of long, roped routes, bouldering grades focus on shorter, more intense problems requiring powerful moves. Each grading system has evolved to reflect these unique characteristics, with climbing often graded on the Yosemite Decimal System (YDS) or French scale and bouldering on the V scale or Fontainebleau (Font) scale.
Warning Some climbers liken the difficulty of a Font 5 boulder problem to that of a 6b sport climb. However, this comparison overlooks key differences, such as the endurance and skills like resting, which are crucial in sport climbing but not as relevant in bouldering.
| Bouldering | Rope climbing | |||
| Font scale | V scale | French | YDS USA | |
| 4a | V0 | 5b | 5.9 | |
| 4b | V0 | 5c | 5.10a | |
| 4c | V0 | 6a | 5.10b | |
| 5a | V1 | 6a+ | 5.10c | |
| 5b | V1 | 6b | 5.10d | |
| 5c | V2 | 6b+ | 5.11a | |
| 6a | V3 | 6c | 5.11b | |
| 6a+ | V3 | 6c+ | 5.11c | |
| 6b | V4 | 7a | 5.11d | |
| 6b+ | V4 | 7a+ | 5.12a | |
| 6c | V5 | 7b | 5.12b | |
| 6c+ | V5 | 7b+ | 5.12c | |
| 7a | V6 | 7c | 5.12d | |
| 7a+ | V7 | 7c+ | 5.13a | |
| 7b | V8 | 8a | 5.13b | |
| 7b+ | V8 | 8a+ | 5.13c | |
| 7c | V9 | 8b | 5.13d | |
| 7c+ | V10 | 8b+ | 5.14a | |
| 8a | V11 | 8c | 5.14b | |
| 8a+ | V12 | 8c+ | 5.14c | |
| 8b | V13 | 9a | 5.14d | |
| 8b+ | V14 | 9a+ | 5.15a | |
| 8c | V15 | 9b | 5.15b | |
| 8c+ | V16 | 9b+ | 5.15c | |
| 9a | V17 | 9c | 5.15d | |
Key Differences Between Climbing and Bouldering Grades
- Length and Nature of Routes:
- Climbing Grades: Assess the endurance required for long, continuous sequences, focusing on sustained difficulty over many moves.
- Bouldering Grades: Reflect the power and technicality of shorter, intense problems, often with challenging moves packed into a few moves.
- Grading Systems:
- Climbing Grades: Primarily use the Yosemite Decimal System (YDS) in the U.S. and the French grading system internationally.
- Bouldering Grades: Use the V scale in the U.S. and the Font scale in Europe.
- Focus on Power vs. Endurance:
- Climbing Grades: Emphasize endurance and ability to manage difficulty over extended sequences.
- Bouldering Grades: Emphasize strength, power, and technical skills for short, intense moves.
Why Grades Aren’t Exact
Grading is subjective, and thus debated and discussed by each person ascending it.
- First ascensionists, local setters and guidebooks can disagree.
- Indoor gym grades often feel easier than outdoor problems.
- Different rock types, styles and setter biases affect perceived difficulty.
Keep this in mind when using charts: they are tools, not rules.