Autobahn-Tempolimit
The A5 and its speed limit
The A5 runs from Hattenbacher Dreieck to Weil am Rhein and is 440.9 km long. Of that, 275.8 km have no speed limit (62.6%) – here are the exact figures, the longest open stretch and where the limit applies.
Route of the A5
The A5 runs from Hattenbacher Dreieck to Weil am Rhein.
Along the way it links Gießen, Frankfurt am Main, Darmstadt, Heidelberg, Karlsruhe, Freiburg and Basel.
Major motorway interchanges along the route include Kreuz Walldorf and Dreieck Karlsruhe.
The A5 in numbers
| Category | Length | Share as bar |
|---|---|---|
| Total length | 440.9 km | |
| no speed limit | 275.8 km | |
| fixed limit | 78.2 km | |
| variable (gantry) | 86.8 km | |
| no limit recorded | 0.1 km |
The longest open stretch
In one go without a limit you can drive up to 127.1 km on the A5 (per carriageway) – the longest continuous derestricted section of this Autobahn. On the interactive map you can follow exactly where the limit drops and where it returns.
Enter start and destination and see how much of your drive is open – and what that means for travel time.
How the figures are produced
The basis is our own analysis of the freely available OpenStreetMap data. For every section of the A5 we check whether a speed limit is recorded and sum the length by category. “No limit recorded” means the tag is missing in the data – which is not the same as open road. This is a data-based analysis, not an official survey.
Frequently asked questions
Which cities lie on the A5?
The A5 runs from Hattenbacher Dreieck to Weil am Rhein and passes, among others, Gießen, Frankfurt am Main, Darmstadt, Heidelberg, Karlsruhe, Freiburg and Basel.
How much of the A5 has no speed limit?
275.8 km of the total 440.9 km, i.e. 62.6%. The remaining 165.1 km have a fixed limit, are gantry-controlled or have no recorded limit.
How long is the longest open stretch on the A5?
Up to 127.1 km in one go – the longest continuous derestricted section on the A5 (per carriageway).
Does the A5 have variable speed limits?
Yes, about 86.8 km of the A5 are controlled by overhead gantries. There a limit can be shown even where the road is otherwise open.
Data source: our own analysis of OpenStreetMap speed limits, as of 22 September 2026. Kilometres averaged per carriageway. Not an official survey.