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Home / Climbs / Col du Glandon

Col du Glandon

From Saint-Étienne-de-Cuines. Length and gradient from an official source; times from the climb time calculator.

Start
Saint-Étienne-de-Cuines
453 m
Length
20.9 km
Average gradient
7%
Max gradient
11.5%
Elevation gain
1,477 m
Summit
1,924 m

Source: Route des Grandes Alpes, checked 14 October 2026.

North side from Saint-Étienne-de-Cuines. RGA summit figure 1,924 m (FAQ elsewhere on the same site says 1,922 m for the neighbouring Croix de Fer junction context).

Time at your watts

Estimated climb time by W/kg
W/kgPowerTimeSpeedVAM
2.0140 W2:25:328.6 km/h602 m/h
2.5175 W1:57:3810.7 km/h744 m/h
3.0210 W1:39:1212.6 km/h883 m/h
3.5245 W1:26:1014.6 km/h1,016 m/h
4.0280 W1:16:2916.4 km/h1,145 m/h
5.0350 W1:03:0619.9 km/h1,388 m/h
6.0420 W54:2023.1 km/h1,612 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 1,188 m (air density 1.064 kg/m³). Calculate yours / All climbs