Italy · SS38
Passo dello Stelviofrom Prato allo Stelvio
24.1 km from Prato allo Stelvio to 2 746 m: 1 842 m of climbing at 7.6 % on average. Grimpa draws the real road in pixel art, and your smart trainer feels every gradient.
The hardest kilometre is km 15, at 9.5 %. The steepest 200 metres reach 12.2 %.
Free · Chrome or Edge, on a computer or Android
Passo dello Stelvio
from Prato allo Stelvio

The profile
Along the road
- Gomagoikm 5.9 · 1 249 m
- Trafoikm 9.7 · 1 495 m
- Franzenshöhekm 18.9 · 2 290 m
Kilometre by kilometre
The average gradient of every kilometre, as your trainer will feel it.
| Km | Altitude | Gradient |
|---|---|---|
| 1 | 938 m | 2.4 % |
| 2 | 987 m | 4.9 % |
| 3 | 1 055 m | 6.7 % |
| 4 | 1 114 m | 5.9 % |
| 5 | 1 177 m | 6.3 % |
| 6 | 1 258 m | 8.1 % |
| 7 | 1 294 m | 3.6 % |
| 8 | 1 369 m | 7.4 % |
| 9 | 1 454 m | 8.5 % |
| 10 | 1 513 m | 6.0 % |
| 11 | 1 590 m | 7.7 % |
| 12 | 1 677 m | 8.7 % |
| 13 | 1 760 m | 8.3 % |
| 14 | 1 845 m | 8.5 % |
| 15 | 1 941 m | 9.5 % |
| 16 | 2 029 m | 8.8 % |
| 17 | 2 123 m | 9.5 % |
| 18 | 2 210 m | 8.7 % |
| 19 | 2 298 m | 8.8 % |
| 20 | 2 386 m | 8.8 % |
| 21 | 2 471 m | 8.6 % |
| 22 | 2 561 m | 9.0 % |
| 23 | 2 647 m | 8.6 % |
| 24 | 2 736 m | 8.9 % |
How long will it take you?
Your weight and watts give your time to the top; a goal time gives the watts it takes.
Passo dello Stelvio time calculatorBuilt from the real road
Every bend and every gradient is where it is on the mountain: the road and the villages from OpenStreetMap, the land from OpenStreetMap and ESA WorldCover 2021, the height of every metre from Digitales Geländemodell Südtirol (DGM 2,5 m), Autonome Provinz Bozen and Mapterhorn. All open data, listed on the sources page.
What you need
A smart trainer with Bluetooth, or your bike with a power meter, and Chrome or Edge on a computer or an Android phone. Sign in with your email or Google; the ride saves to Strava.
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