Driving in the United Kingdom means one fundamental adjustment above all others: you drive on the left. For most visitors arriving from continental Europe, North America or Australia, this is the single biggest mental shift — and it is most disorienting in the first few minutes after crossing the Channel or leaving an airport. Once you have settled in, the UK has good roads, clear signage and a well-maintained motorway network. But there is plenty of local detail worth knowing — from clean air zones in cities to the peculiarities of the roundabout, the M25 and UK fuel grades.
Driving on the left
The UK (along with Ireland, Australia, Japan and several others) drives on the left, with the driver seated on the right side of the vehicle. See our full guide to countries where you drive on the left for the full list and adjustment tips.
Key practical points for visitors used to driving on the right:
- Roundabouts: Give way to traffic coming from the right (traffic already on the roundabout). This is the reverse of the instinct for right-hand-drive-country visitors.
- Overtaking: On single carriageway roads, you overtake on the right (which is now the "outside"). On motorways and dual carriageways, keep left and overtake on the right.
- Turning from stationary: Pulling out of a car park or junction, your natural instinct may be to default to the wrong side. Take it slowly and consciously in the first day.
- Headlamp beam: If your car is set up for driving on the right, headlamp beams angle slightly to the right (to light the road without dazzling oncoming traffic). In the UK, this means your lights dazzle oncoming cars. Headlamp beam deflectors are available cheaply at ports and service stations and are worth fitting.
Highest-risk moment: The most common error is pulling out of a junction or car park onto the wrong side — particularly after stopping. Think "keep left" actively at every junction, especially in the first day of driving.
Documents and what to carry
EU/EEA licences are recognised in the UK. Most other international licences are also valid for up to 12 months, but after Brexit, the arrangements vary by country — some nationalities must exchange their licence or carry an International Driving Permit. Check with the DVLA and your own government's travel advice before travelling.
There is no legal requirement to carry a warning triangle or high-visibility vest in the UK (unlike most of continental Europe), but both are sensible to have in the car. If driving into Europe with the same vehicle, they may be legally required there.
Third-party insurance is the legal minimum in the UK. EU green cards are accepted but are not required between EU member states and the UK in all cases — check your insurer's documentation before travelling.
Speed limits
UK speed limits are in miles per hour (mph), not kilometres per hour:
- Motorways: 70 mph (approximately 113 km/h)
- Dual carriageways: 70 mph
- Single carriageway roads: 60 mph (approximately 97 km/h) unless signed otherwise
- Built-up areas: 30 mph (approximately 48 km/h), reducing to 20 mph in an increasing number of towns, cities and residential areas
Speed cameras (both fixed Gatso-style cameras and average-speed SPECS cameras) are common. Fines are issued by post to the registered keeper; for hire cars, the rental company passes the charge to the renter along with an admin fee. Points are added to UK licences; foreign licences may receive fines only or, increasingly, data sharing through EU arrangements.
Motorways and the M25
The UK has an extensive motorway network centred on London. The M25, London's orbital motorway, is one of the busiest roads in Europe and experiences significant congestion at almost any time of day — plan around it if you can. Motorways are free in most of the UK, with the main exceptions being:
- M6 Toll (around Birmingham): a tolled alternative to the congested M6
- The Dartford Crossing (M25, crossing the Thames east of London): charged electronically via the Dart Charge system — pay online before or after crossing
- Various bridges and tunnels: including the Mersey tunnels and Humber Bridge
For more on UK toll roads see our guide to European motorway tolls.
Clean Air Zones and the London ULEZ
London operates the most extensive clean air charging system in the country: the Ultra Low Emission Zone (ULEZ), which now covers all of Greater London. Vehicles that do not meet minimum emission standards (broadly Euro 4 petrol and Euro 6 diesel) pay a daily charge to drive within the zone. The charge applies 24 hours a day, every day of the year, and is enforced by cameras reading number plates.
Foreign-registered vehicles are subject to the ULEZ charge. You pay via Transport for London's (TfL) website. Additionally, the London Congestion Charge applies in the central zone Monday to Sunday (with earlier Sunday coverage extended). Both can be paid for the same journey online.
Outside London, a growing number of cities — including Birmingham, Bristol, Bath, Bradford, Portsmouth and Glasgow (Scotland) — have introduced Clean Air Zones (CAZ) with similar vehicle-category restrictions. Check each city's rules before entering. Our European low-emission zone guide has more context, though UK zones are nationally regulated rather than EU-aligned post-Brexit.
Rules of the road
Some specifics for visiting drivers:
- Alcohol limit: 80 mg per 100 ml of blood in England, Wales and Northern Ireland — the same threshold as 0.8 g/l BAC, which is higher than most of continental Europe. Scotland operates a stricter limit of 50 mg/100 ml (0.5 g/l), so if you drive in Scotland, treat it as the continental standard.
- Mobile phones: Handheld use is illegal and the penalties are significant — an instant fine and points, doubling since 2017. Hands-free kits are permitted.
- Motorway hard shoulder: The hard shoulder on smart motorways may be used as a running lane when signed. These sections are managed by overhead gantry signs — always follow gantry signs, not your expectation of how motorways work.
- Box junctions: Yellow hatched boxes painted at junctions mean you must not enter unless your exit is clear. A camera fine is issued if you stop inside a box junction.
- Children: Must use an appropriate child seat until they are 135 cm tall or 12 years old (whichever comes first).
Fuel
UK fuel terminology differs slightly from continental Europe: petrol is called petrol (not essence or benzin), and grades sold include E5 unleaded and E10 unleaded (which not all cars can use — check your handbook) and diesel. Fuel is priced in pence per litre. Motorway service stations charge noticeably more than supermarket forecourts. Diesel in Northern Ireland is different again due to cross-border agricultural diesel use — use only road-legal fuel.
Parking
UK city parking uses a mixture of pay-and-display machines (more common) and RingGo/JustPark-style apps. Yellow lines indicate restrictions: single yellow means restricted at certain hours (check the nearby sign); double yellow means no parking at any time. Red lines indicate stricter restrictions in London and some cities. Wheel clamping by private operators was banned in England and Scotland (though still used in some private car parks) — but enforcement notices are issued for overstaying.
Many town centres now have controlled parking zones (CPZ) where parking meters operate. Some UK supermarkets (Tesco, Sainsbury's, etc.) offer free parking in their car parks, with parking registration required via app or kiosk.
Hiring a car in the UK
All major rental companies operate in the UK. EU licence holders can hire without restriction. Be aware that some companies require an additional credit card check or an international licence endorsement from certain countries. If you are hiring to drive in the Republic of Ireland as well, confirm this with the rental company — most will permit it but some have restrictions. See our car hire guide for what to ask.
Frequently asked questions
Can I drive in the UK on an EU licence after Brexit?
Yes. EU and EEA driving licences are valid in the UK for both residents and visitors. The arrangements for some non-EU international licences changed post-Brexit — if your licence is not from the EU/EEA, check with the DVLA and your own government for the current rules for your nationality.
What is the ULEZ and do I have to pay it as a foreign visitor?
The ULEZ (Ultra Low Emission Zone) covers all of Greater London and charges a daily fee for vehicles that do not meet minimum emission standards. Foreign-registered vehicles are subject to the charge. You pay via Transport for London's website — failure to pay results in a penalty notice sent to the registered owner, including hire car renters via the hire company.
Is the Dart Charge different from the ULEZ?
Yes. The Dart Charge is a crossing fee for the Dartford Crossing (M25 tunnel and bridge crossing the Thames east of London). It is separate from the ULEZ and from the central London Congestion Charge. You pay it online before or after crossing — there is no toll booth.
Is the alcohol limit really higher in the UK than in Europe?
In England, Wales and Northern Ireland, the limit is 80 mg/100 ml of blood — higher than the 50 mg/100 ml limit that applies in most EU countries. In Scotland, the limit was lowered to 50 mg/100 ml, matching the European standard. The safest approach, as always, is not to drink if you are driving.
Sources and further reading:
- UK Highway Code (including left-hand traffic and motorway rules): gov.uk/highway-code
- ULEZ and Congestion Charge: Transport for London (tfl.gov.uk)
- Clean Air Zones across UK: gov.uk/clean-air-zones
- Dart Charge payment: dartcharge.co.uk
- Entry and driving requirements for your nationality: UK government travel advice (gov.uk/foreign-travel-advice) and your own government's advisory
