Driving on the left: how long does it take to adjust before a road trip?

Driving on the left isn't simply driving on the right in mirror image: the brain has to reassign, in real time, a set of gestures that became automatic after years of driving on the right — lane position, the hand that reaches for the gearstick, where to look at a roundabout, reaching for the indicator instead of the wipers (the two stalks are usually swapped on a right-hand-drive vehicle). Precisely because these habits are automatic, they resurface under stress or fatigue — a quick overtake, merging onto a motorway, a U-turn on a narrow street — exactly when a mistake costs the most.

This isn't just a feeling: road safety research confirms that a driver's nationality and driving habits directly affect crash risk, independently of their overall driving experience.

The good news: basic adjustment is fast. Most drivers pick up the essential reflexes of left-hand driving within a few hours on the road, and something close to natural ease usually sets in after two to three days of regular driving. The bad news: it's precisely those first kilometres, before those reflexes are in place, that carry the most risk — pulling out of the rental lot, the first roundabout, the first merge onto a main road.

What almost every near-miss has in common: it happens during a manoeuvre the driver has repeated thousands of times on the right in their home country, and is now executing on the left for the first time without consciously thinking about it. Taking the wheel somewhere quiet — an empty car park, a low-traffic side road — before joining a main road or entering a town lets that first adjustment phase happen without the stakes attached.

Eleven of the countries covered on this site drive on the left — covering a large share of the most requested self-drive road trips. The table below summarises what to watch for in each, alongside the dedicated country guides.

The roundabout is the situation rental companies and local guides mention most: on the left, you go clockwise, and priority comes from the right. The most common wrong reflex is looking left when entering, as in a right-hand-drive country — when the danger actually comes from the right.

Other mistakes come up again and again in traveller accounts: drifting back to the right-hand side of the road after overtaking or leaving a petrol station (the reflex naturally pulls right), reaching for the wipers instead of the indicator when changing direction (the two stalks are swapped on most right-hand-drive vehicles), and misjudging the vehicle's width on the left — since the driver's seat has moved sides, distances to verges, low walls or parked cars become harder to judge, especially at night or on narrow roads.

A few simple habits noticeably cut the risk during the adjustment phase. Choosing an automatic gearbox when available frees up mental bandwidth: the right hand no longer has to manage a gearstick on top of the new side of the road — especially useful in Japan or New Zealand, where automatics are widely available. Avoiding a first drive right after a night flight or significant jet lag limits the fatigue-plus-disorientation combination most often linked to run-off-road incidents in the first days.

A passenger who calls out "stay left" at junctions and petrol station exits, a sticky note on the dashboard in the driver's line of sight, or simply the habit of following the car ahead through a roundabout — these cost nothing and prevent most of the common mistakes. Finally, choosing a quiet test route before heading into a town or onto a main road gives new reflexes time to settle without pressure.

A study by George Yannis, John Golias and Eleonora Papadimitriou, published in 2007 in the Journal of Safety Research, analysed the crash risk of foreign drivers in Greece across different road environments (urban or not, junctions, lighting conditions). Its main finding: foreign drivers' crash risk rises sharply at junctions, and long-term foreign residents show markedly lower risk than short-term tourists — evidence that gradual familiarity with the local road network, more than driving experience alone, explains most of the gap (study available on Google Scholar: scholar.google.com/scholar?q=Yannis+Golias+Papadimitriou+Accident+risk+of+foreign+drivers+in+various+road+environments).

This directly informs the question of which side to drive on: it isn't only the left-right mirror effect that causes trouble, but the combination of an unfamiliar road network, different signage, and reflexes that have to be rebuilt from scratch — exactly what concentrates at junctions and roundabouts in the first days of a road trip abroad.

Some itineraries combine several countries: a road trip through Namibia, Botswana and South Africa stays entirely on the left, but adding a leg in a neighbouring right-hand-drive country means flipping the reflexes a second time. This mid-trip switch, less anticipated than the first adjustment to left-hand driving, deserves the same care: take a few minutes of slow, focused driving as soon as the new vehicle's keys are handed over, rather than carrying momentum from the previous country.

Before setting off: locate the indicator and wiper stalks on the rental vehicle, choose an automatic gearbox for the first few days if possible, avoid a first drive at night or right after a long-haul flight, and head out of the rental lot toward a quiet road rather than a busy city centre or airport. These few minutes of preparation cover nearly every risk situation reported by rental companies across this site's left-hand-drive destinations.