Home / Climbs / Cormet de Roselend
Cormet de Roselend
From Beaufort-sur-Doron. Length and gradient from an official source; times from the climb time calculator.
- Start
- Beaufort-sur-Doron
- 738 m
- Length
- 20.3 km
- Average gradient
- 6%
- Max gradient
- 9.5%
- Elevation gain
- 1,230 m
- Summit
- 1,968 m
Source: Route des Grandes Alpes, checked 15 October 2026.
North side from Beaufort-sur-Doron. RGA's south-side panel (Bourg-Saint-Maurice, 19.3 km at 6%) gives the summit as 1,938 m; this page uses the 1,968 m on the page header and north-side panel.
Time at your watts
| W/kg | Power | Time | Speed | VAM |
|---|---|---|---|---|
| 2.0 | 140 W | 2:03:20 | 9.9 km/h | 591 m/h |
| 2.5 | 175 W | 1:40:08 | 12.2 km/h | 729 m/h |
| 3.0 | 210 W | 1:24:51 | 14.4 km/h | 860 m/h |
| 3.5 | 245 W | 1:14:04 | 16.4 km/h | 985 m/h |
| 4.0 | 280 W | 1:06:04 | 18.4 km/h | 1,104 m/h |
| 5.0 | 350 W | 55:02 | 22.1 km/h | 1,326 m/h |
| 6.0 | 420 W | 47:47 | 25.5 km/h | 1,527 m/h |
Model estimate in calm air at steady power (Martin et al. 1998). 70 kg rider + 8 kg bike, tops position (CdA 0.358), Crr 0.0032, 15 °C, air density at the climb's mid-elevation. Mid-elevation 1,353 m (air density 1.043 kg/m³). Calculate yours / All climbs
Climb time calculator (prefilled) / All famous climbs