Col de Chamrousse from Saint-Martin-d'Uriage
Col de Chamrousse from Saint-Martin-d'Uriage: 23.6 km at 5.9% average and 1,380 m of climbing, up to 1,800 m.
- Distance
- 23.6 km
- Elevation gain
- 1,380 m
- Elevation loss
- 27 m
- Average gradient
- 5.9 %
- Start altitude
- 432 m
- Road
- Departmental road
- Surface
- Paved throughout
- Steepest 500 m
- 11.1 %
- Hardest 2 km
- 9.0 %
- Hardest kilometre
- km 9 · 9.0%
- Above 8%
- 6.4 km (27% of the climb)
- Difficulty index
- 8.6 Hard
FIETS index: Δaltitude² / (10 × distance) + max(0, summit altitude − 1,000) / 1,000, lengths in metres. How this index works (article in French)
How long does it take?
| Level | Estimated time | Average speed |
|---|---|---|
| 2.0 W/kg — 140 W | 2h25 | 9.7 km/h |
| 3.0 W/kg — 210 W | 1h40 | 14.1 km/h |
| 4.0 W/kg — 280 W | 1h19 | 18.0 km/h |
Estimated for a 70 kg rider on a 9 kg bike, in still air, at a steady effort and without stopping. Wind, a stop at the fountain or a wheel to sit on move these figures by several minutes.
The route
Climb profile
- 10% and above
- 8 to 10%
- 6 to 8%
- 4 to 6%
- under 4%
Kilometre by kilometre
| Km | Gradient | Altitude at the top of the km |
|---|---|---|
| 1 | 4.4 % | 476 m |
| 2 | 7.6 % | 553 m |
| 3 | 5.2 % | 604 m |
| 4 | 6.9 % | 673 m |
| 5 | 2.8 % | 701 m |
| 6 | 0.7 % | 709 m |
| 7 | 8.8 % | 796 m |
| 8 | 7.2 % | 868 m |
| 9 | 9.0 % | 958 m |
| 10 | 8.9 % | 1,048 m |
| 11 | 4.8 % | 1,096 m |
| 12 | 5.3 % | 1,149 m |
| 13 | 5.5 % | 1,204 m |
| 14 | 7.3 % | 1,277 m |
| 15 | 4.3 % | 1,319 m |
| 16 | 5.6 % | 1,376 m |
| 17 | 4.6 % | 1,422 m |
| 18 | 5.4 % | 1,476 m |
| 19 | 5.5 % | 1,531 m |
| 20 | 6.6 % | 1,597 m |
| 21 | 5.3 % | 1,650 m |
| 22 | 5.5 % | 1,705 m |
| 23 | 5.6 % | 1,761 m |
| 24 (partial) | 4.2 % | 1,785 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Séchilienne 18.2 km · 7.8 %
- From Vaulnaveys-le-Bas 19.4 km · 7.5 %
Frequently asked questions
How long is the climb to Col de Chamrousse?
The hardest climb of Col de Chamrousse, from Saint-Martin-d'Uriage, is 23.6 km long for 1,380 m of ascent, i.e. 5.9% average.
What is the steepest part of Col de Chamrousse?
The steepest 500 m sits at 11.1%, and the hardest kilometre is the 9th, at 9.0%.
How long does it take to climb Col de Chamrousse from Saint-Martin-d'Uriage?
Col de Chamrousse from Saint-Martin-d'Uriage takes about 1h40 at 3.0 W/kg, i.e. 14.1 km/h on average. The page gives three levels and their assumptions.
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