Kluisberg rises southwards from Ruien on Bergstraat, towards the wooded hill of the Kluisbos. The selected section covers the lower ascent rather than carrying you all the way to the hilltop. Its modest opening gives little indication of the stronger slope ahead: the road gradually gathers resistance before the middle becomes the main event.
About 870 metres at an average of roughly 7% make this a concentrated climb, but the effort is unevenly distributed. The steepest sustained work comes beyond the halfway point, where the earlier introduction has become a much firmer ascent. The gradient then falls away markedly near the end of this section, giving the finish a different feel from the central ramp. Kluisberg's appeal here lies in that compact progression, with a demanding middle framed by gentler ground.
01 / The ascent
Elevation profile
02 / The numbers
Climb statistics
- Distance
- 0.87 km
- Elevation gain
- 62 m
- Average gradient
- 7.1%
- Climb category
- Uncategorized
- Start elevation
- 31 m
- Summit elevation
- 92 m
03 / Your effort
How long would it take?
Enter the power you could hold for the whole climb. We calculate a moving time from the elevation profile and the forces you ride against.
Use your intended climbing effort, rather than FTP unless you can hold it for the predicted duration.
Bike + kit includes clothing, bottles and luggage.
Advanced settings
Defaults represent a road-bike scenario. Adjust these settings to match your tyres, drivetrain and riding position.
Modelled moving time
4 min
- Power throughout
- 225 W
- Average speed
- 11.9 km/h
Based on the 0.87 km elevation profile. Assumes steady power, with no stops, braking or drafting. Rounded to the nearest minute.
The science behind the calculation
For each part of the stored profile, we solve the steady-state cycling power equation for speed, then add distance ÷ speed across the climb. Gravity uses rider + equipment weight; available power is W/kg × rider weight. This uses the profile’s distance and elevation together, without mixing in another route’s metrics.
Power × efficiency = gravity + rolling resistance + air resistance + bearing losses
The resistance equations are adapted from Martin et al. (1998), Validation of a Mathematical Model for Road Cycling Power. Air density changes with profile altitude using NASA’s standard-atmosphere model. This calculator’s adaptation has not been independently validated.
It predicts travel at the power you enter, including on descents. It does not model acceleration, cornering, braking, traffic, wind, changing weather or fatigue. At altitude, choose power you can sustain there: thinner air reduces drag, but this model does not predict its effect on your ability to produce power. Profile quality and assumed equipment settings also affect the result.
04 / On the ground
Route map
Route overview
Kluisberg
Kluisbergen, Vlaanderen, Belgium
- Route length
- 0.87 km
- Total ascent
- 62 m
- Average gradient
- 7.1%
05 / Take it home
The climb, as artwork
Turn the route into a personalised topographic print. Choose your colours and composition, then download your artwork.
06 / Keep exploring
Nearby climbs
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Koppenberg
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Zonnestraat
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Oliebergstraat
0.6 km · 3.5% · 23 m gain
Deerlijk, Vlaams Gewest, Belgium
10.5 km away · Explore climb →