British trad grades and YDS describe difficulty very differently. British uses two parts — an adjectival grade for overall seriousness (E1, E2) plus a technical grade for the hardest move (5b, 6a) — capturing danger as well as difficulty; YDS uses a single 5.x rating focused on technical difficulty.
| Aspect | British | YDS |
|---|---|---|
| Parts | Two (adjectival + technical) | One (5.x) |
| Captures | Difficulty + boldness | Technical difficulty |
| Region | United Kingdom | United States |
| ~5.10a | HVS 5a / E1 5a | 5.10a |
| ~5.11d | E3 6a | 5.11d |
You'll see British grades in…
- The UK
- British-influenced trad areas
- UK guidebooks
You'll see YDS in…
- The United States & Canada
- US sport and trad crags
Verdict
Frequently asked questions
How do British climbing grades work?
Each trad route gets two grades: an adjectival grade (Severe, VS, HVS, E1, E2…) for the overall seriousness, and a technical grade (5b, 6a) for the single hardest move. Comparing them reveals how bold or how physical a route is.
What does E1 mean?
E1 ('Extremely Severe 1') is the first of the open-ended 'E' adjectival grades, marking the start of hard British trad. Paired with a technical grade like 5a or 5b, it signals a committing, serious route.
Why does British climbing use two grades?
Because danger and physical difficulty aren't the same thing. The adjectival grade captures seriousness and protection; the technical grade captures the hardest move — together they describe a route's character far more fully than a single number.
Related: British · YDS · Trad climbing · Grade conversion