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Tour de France 2026 route
Tour de France 2026 Stage 18: Voiron to Orcières-Merlette
Mountain
5 categorised climbs
184.5 km from Voiron to Orcières-Merlette with 4,000 m of climbing, measured along the organiser's published course.
Distance
184.5 km
Climbing
4,000 m
Descending
2,367 m
Stage type
Mountain
Date
Thursday, 23 July 2026
Roadbook distance
185.2 km published
Climbs on stage 18
| Climb | Category | Summit at | Length | Gradient |
|---|---|---|---|---|
| Côte d'Engins (854 m) | Category 1 | km 36.6 | 11.5 km | 5.4% |
| Côte de Monteynard | Category 2 | km 91.9 | 9.7 km | 5.0% |
| Côte des Terrasses | Category 3 | km 112.3 | 3.4 km | 6.6% |
| Côte de Saint-Léger-les-Mélèzes | Category 3 | km 165.6 | 2.5 km | 6.9% |
| ORCIÈRES-MERLETTE (1 825 m) | Category 1 | km 184.5 | 7.1 km | 6.7% |
Intermediate sprints
- CORPS — km 98.2
How this stage was measured
The course comes from ASO's own published geometry, the same data that draws the stage map on letour.fr, not from a route planner joining towns. VeloWorkout measures 184.5 km against the 185.2 km the roadbook prints, and 4,000 m of climbing against a published 3,900 m. Elevation is sampled from the Terrarium elevation model and smoothed, so digital-model noise is not counted as climbing.
Waypoint positions agree with ASO's separately published climb positions to a median of 95 m (worst 162 m).