About this tool
German road rules for visitors: which side to drive on, speed limits in km/h and mph, blood-alcohol limits and licence or IDP requirements.
The Driving in Germany Rules Explainer sets out the rules a visiting driver actually has to obey in Germany: drive on the right, 50 km/h in built-up areas, 100 km/h on country roads, and no general limit on unrestricted Autobahn where 130 km/h is only an advisory speed. It works out which blood-alcohol limit applies to you personally — 0.05 % under StVG §24a, or an absolute zero under §24c if you are under 21 or still in the two-year probationary period — and whether your licence needs an International Driving Permit alongside it. Speeds are shown in km/h and mph together, and a Widmark-equation estimate shows how long alcohol from the night before is likely to stay in your system.
Open Driving in Germany Rules Explainer on AltFTool — it loads instantly in your browser.
Under Your details enter Your age (years) and Licence held for (years), choose Where your licence was issued (EU / EEA, non-EU in Latin script, or non-EU in a non-Latin script), set Length of stay (days), and tick Towing a caravan or trailer if it applies.
Read Your legal blood-alcohol limit in Germany — 0.05 % for fully licensed drivers 21 and over, an absolute zero inside the two-year Probezeit — alongside International Driving Permit and Foreign licence recognised for, and the Speed limits table in km/h and mph.
Work the Morning-after estimate fields (drinks, drink volume, ABV, body weight, sex r-value, hours elapsed) for a Widmark reading, check What must be in the car and Rules that catch visitors out, then press Copy result.
Every speed is shown in km/h and mph, so a UK or US driver can read the sign and the dial at once.
Applies the under-21 and probationary-period zero limit instead of quoting one figure to everybody.
Warning triangle, DIN 13164 first-aid kit, vest and Umweltplakette — the items German roadside checks actually ask for.
On roughly two thirds of the network there is no general numeric limit for cars, but 130 km/h is the official Richtgeschwindigkeit or advisory speed. Exceeding it is not an offence in itself, yet if you crash above 130 km/h a German court can assign you part of the liability even when the other driver caused the collision. Posted limits, roadworks and variable gantry signs are binding everywhere they appear.
0.5 per mille, which is 0.05 % blood alcohol or 0.25 mg per litre of breath, for fully licensed drivers aged 21 and over. Drivers under 21 and anyone inside the two-year Probezeit face an absolute ban at 0.0. From 0.3 per mille you can already be prosecuted under StGB §316 if your driving shows impairment or you are involved in a crash.
Not with an EU or EEA licence, which is recognised in full. With a non-EU licence you should carry an International Driving Permit or a certified German translation alongside the original, and the foreign licence stops being valid six months after you take up ordinary residence, at which point you must apply for an Umschreibung.
It is the emergency corridor you must open as soon as traffic on a multi-lane road slows to a crawl — the far-left lane pulls left, every other lane pulls right, before the emergency vehicles arrive. Failing to form it is fined €200 to €320 with two points and a one-month driving ban, and obstructing rescue services can be a criminal offence.