Outdoor PitstopCycle route · Ulm · Updated on 14 November 2026
Iller-Radweg cycle route
Iller-Radweg is a cycle route of 146.4 km from Ulm. Along the way you'll find 380 benches, 1 water point and 14 public toilets.
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The route step by step
From start to finish, with what you pass along the way and the distance in between.
- 146.4 km
- ± 9:45 h
- ↑ 649 m · ↓ 326 m
- Hard
- From A to B
- Regional route
Start in Ulm
0 kmAt the start: public toilet.
730 m · 21 benches
Oberer Donauturm (Werk XXVIII) and 1 more
730 mObere Stadtkehle (Werk XXVII)
691 m · 15 benches
Public toilet
1.4 km4.5 km · 19 benches
Museum im Konventbau
5.9 kmPublic toilet
9.9 km · 39 benches
Water point
15.8 km50.3 km · 50 benches
Schwäbisches Bauernhofmuseum Illerbeuren
66.1 kmPublic toilet
450 m · 8 benches
Alter Bahnhof Illerbeuren 1904-1972
66.6 kmMemorial
15.7 km · 9 benches
Kriegerdenkmal
82.2 kmMemorial
18.9 km · 30 benches
Erasmuskapelle
101.1 kmPublic toilet
22.7 km · 57 benches
Burgruine Laubenbergerstein
123.8 kmAttraction
3.3 km · 7 benches
Public toilet
127.1 km6.3 km · 12 benches
Public toilet
133.4 km596 m · bench
Public toilet
134 km5.8 km · 24 benches
Public toilet
139.9 km3.9 km · 64 benches
Iller river source
143.8 kmAttraction
1.8 km · 8 benches
Public toilet
145.6 km241 m
2 public toilets
145.8 km555 m · 16 benches
Finish
146.4 kmAt the finish: 2 public toilets.
Longest stretch without a toilet: 60.2 kmBetween 5.9 km and 66.1 km there is no public toilet within 100 m of the route.
The route with the pitstops and sights within 100 m of it.
9 sights along the way
In the order you pass them. With the Outdoor Pitstop app you hear their story on the spot. 1 more along the route are on the map.
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Photo: Reutlingendorf · Wikimedia Commons · CC BY-SA 4.0View the photo on Wikimedia CommonsAttraction · after 730 m
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Photo: Hohenzollernsche Lande · Wikimedia Commons · CC BY-SA 4.0View the photo on Wikimedia CommonsAttraction · after 741 m
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Photo: Carsten Steger · Wikimedia Commons · CC BY-SA 4.0View the photo on Wikimedia CommonsMuseum · after 5.9 km
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Photo: Bene16 · Wikimedia Commons · CC BY-SA 3.0View the photo on Wikimedia CommonsMuseum · after 66.2 km
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Photo: Mayer Richard · Wikimedia Commons · CC BY 3.0View the photo on Wikimedia CommonsMemorial · after 66.6 km
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Photo: Richard Mayer · Wikimedia Commons · CC BY 3.0View the photo on Wikimedia CommonsMemorial · after 82.2 km
Museum · after 101.1 km
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Photo: No machine-readable author provided. Dark Avenger~commonswiki assumed (based on copyright claims). · Wikimedia Commons · CC BY-SA 3.0View the photo on Wikimedia CommonsAttraction · after 123.8 km
Elevation and terrain
- Up
- ↑ 649 m
- Down
- ↓ 326 m
- Highest point
- 803 m
- Lowest point
- 470 m
- 5-10% slope · 2.2 km
Elevation from Copernicus GLO-30 (European Union and ESA), smoothed.
produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved
Way types
146.4 km in total- Track: 62.5 km
- Path: 44.7 km
- Road: 29 km
- Street: 5.2 km
- Cycle path: 3 km
- Footpath (walk your bike): 1.1 km
- Busy road: 525 m
Surfaces
146.4 km in total- Gravel: 89.4 km
- Asphalt: 38 km
- Paved: 1.8 km
- Unpaved: 700 m
- Unknown: 16.1 km
About the cycle route Iller-Radweg
Updated on 14 November 2026, with data from OpenStreetMap, the AHN and Copernicus.
Where do you cycle?
Iller-Radweg is a cycle route of 146.4 km that starts in Ulm. It does not end where it starts. Along the way you pass Oberer Donauturm (Werk XXVIII) (after 730 m), Obere Stadtkehle (Werk XXVII) (after 741 m) and Museum im Konventbau (after 5.9 km).
How hard is the route?
You climb 649 m in total and descend 326 m. Allow ± 9:45 h, without breaks. The level is hard.
What roads do you cycle on?
The longest part is track (62.5 km), path (44.7 km) and road (29 km). Of the surface, 89.4 km gravel and 38 km asphalt. For 16.1 km the surface is not known.
Pitstops along the way
Within 100 metres of the route there are 380 benches, 1 water point and 14 public toilets. You can fill your bottle after 15.8 km. The longest stretch without a toilet is 60.2 km. The Outdoor Pitstop app navigates you there.
The Iller-Radweg (Iller Cycle Route) is a cycle route of about 146 km along the Iller, from the river's source near Oberstdorf in the Allgäu to Ulm, where the Iller joins the Danube. It runs via Kempten, Altusried, Aitrach, Dietenheim and Senden. The Swabian Farm Museum lies at Illerbeuren. Three fifths of the route is gravel and only a quarter asphalt, mostly on farm tracks. Drinking water is scarce: we know of just one point, plus 14 toilets.
Source: Wikipedia (CC BY-SA)
Cycle routes nearby
6Sights nearby
Within 10 km of the route, best known first.
- 1
Ulm MinsterAttraction · 605 m from the route - 2
Denkmal für das Außenlager Kottern-Weidach des Konzentrationslager Dachau.Memorial · 479 m from the route - 3
Donauschwäbisches ZentralmuseumMuseum · 118 m from the route - 4
Obere Donaubastion (Werk I)Attraction · 118 m from the route - 5
BurghaldeCastle · 158 m from the route - 6
Memminger TorAttraction · 175 m from the route - 7
BurgstallRuins · 186 m from the route - 8
FlüchtlingsbrunnenAttraction · 317 m from the route - 9
Ehinger Tor (Werk II)Attraction · 324 m from the route - 10
SchwörhausAttraction · 335 m from the route - 11
Schloss LautrachCastle · 342 m from the route - 12
FrauenkapelleAttraction · 342 m from the route - 13
Hornwerk am Fort Unterer Kuhberg (Werk XXX)Attraction · 365 m from the route - 14
Caponniere 8Castle · 381 m from the route - 15
Mittelbastion (Werk IV)Attraction · 403 m from the route - 16
Neuer BauAttraction · 406 m from the route - 17
KZ-Außenlager FischenRuins · 409 m from the route - 18
Kempten-Museum im ZumsteinhausMuseum · 442 m from the route - 19
Fort Unterer Kuhberg (Werk XXIX)Attraction · 468 m from the route - 20
MetzgerturmAttraction · 479 m from the route - 21
LöwenbrunnenAttraction · 502 m from the route - 22
Kunsthalle KemptenMuseum · 509 m from the route - 23
WasserturmAttraction · 533 m from the route - 24
Kleine ThermenMuseum · 536 m from the route - 25
RathausAttraction · 540 m from the route
Explore more
More cycle routes around Ulm
Frequently asked questions
How long is Iller-Radweg?
Iller-Radweg is 146.4 km long. Allow ± 9:45 h of riding: 15 km an hour, without breaks.
Is this route a circular ride?
No, the route starts and ends at different spots.
Where does this route start?
The route starts in Ulm.
How hard is this route?
Hard, with 649 m of climbing.
Are there toilets along this route?
Yes, there are 14 public toilets within 100 m of the route. The longest stretch without a toilet is 60.2 km.
Can you fill up with water along this route?
Yes, there are 1 water point within 100 m of the route.
What is there to see along this route?
Along the way you pass Oberer Donauturm (Werk XXVIII), Obere Stadtkehle (Werk XXVII) and Museum im Konventbau.
Can I download this route as a GPX file?
Yes. Sign in with your Outdoor Pitstop account and choose Download GPX at the top of this page: 10 routes a month for free, unlimited with Pro.
Starting point
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Route data © OpenStreetMap contributors
