Korea Expressway Limit 2026: 100 km/h, 120 on Named Routes

The Korean expressway limit is 100 km/h, not 110 — and 120 km/h is the legal ceiling, reached only on routes the National Police Agency designates and signs. Article 19 of the Enforcement Rule of the Road Traffic Act (law.go.kr) sets 80 km/h where an expressway has a single lane each way, 90 km/h on automobile-only roads, 60 km/h on ordinary roads outside built-up areas — 80 where they have two or more lanes each way — and 50 km/h through residential, commercial and industrial areas.

Your case: Section control decides most tickets here, because what is measured is your average between two gantries rather than your speed at either one — work out which won band your own stretch would land in with the speeding fine calculator, since a rental firm adds its admin fee on top before charging your card.

In Korea the cameras never really stop

The number on the sign is the easy part. South Korea runs one of the densest speed-camera networks anywhere — fixed cameras every few kilometres on the expressways, plus section control that averages your speed between two gantries, so braking for one camera achieves nothing. Every Korean navigation app (T-map, KakaoNavi) calls the cameras out loud, which is why locals glide along right at the limit. Two things trip up visitors: you need an International Driving Permit alongside your home licence to drive or rent here, and the 0.03 alcohol limit is low enough that a single drink puts you over.

Speed Limits in South Korea — What the Rule Actually Says

Korea does not have one motorway number. The Enforcement Rule of the Road Traffic Act, article 19, sets a limit per road class, and the expressway figure depends on how many lanes it has and whether the police have designated it:

Where the 110 comes from

110 km/h is not in the rule. It is a posted value on a number of expressway stretches that sit between the 100 default and the 120 designation, which is why so many guides quote it as though it were the national figure. Read the sign, not the guide: the same road can carry 100 for tens of kilometres and then a designated section at a different number.

Bad weather is not advisory

Article 19 also fixes the reduction, so a driver keeping to the posted limit in rain is still speeding:

• 20 per cent off the maximum when rain has wet the surface, or snow lies under 20 mm
• 50 per cent off when heavy rain, snow or fog cuts visibility below 100 metres, when the surface is iced, or when snow lies 20 mm or deeper

Where a variable message sign posts its own limit, that sign overrides both the fixed limit and any other sign.

Speeding Penalties

Korea issues two parallel amounts for the same offence — a beomchikgeum when an officer stops you and a slightly higher gwataeryo when a camera catches the car — which is why each band below is a range rather than a figure. The bands this page carries are:

• 1-20 km/h over: ₩30,000-40,000 KRW

• 21-40 km/h over: ₩60,000-70,000 KRW

• 41-60 km/h over: ₩100,000-130,000 KRW

• Over 60 km/h: ₩130,000+ KRW

The top two bands are the ones to treat with caution: they are drawn from our country record rather than from a retrieved copy of the fine schedule, and they are under separate review. The speed limits above, by contrast, are quoted straight from article 19 of the Enforcement Rule.

What Most Guides Don’t Tell You

Local Enforcement

Enforcement standards in South Korea vary by region. Motorway stretches near cities tend to be monitored more heavily than remote rural roads.

Rental companies will forward any camera-generated fines to your payment card, plus an administration surcharge that can double the original amount.

Truck Speed Limits

Goods vehicles over 1.5 tonnes, special vehicles, dangerous-goods carriers and construction machinery are capped at 80 km/h on expressways, and 90 km/h on the designated 120 km/h routes. On a 120 route that is a 30 km/h differential with a car in the outside lane — the gap worth watching when you merge.

Mandatory Equipment

A speed check often turns into a full vehicle inspection. Make sure you carry a warning triangle. Missing any of these items is a separate offence with its own fine.

Alcohol and Speed

With a BAC limit of 0.03, South Korea is stricter than many destinations. Driving after even one drink and exceeding the speed limit can lead to a double penalty.

How South Korea Compares

Key Facts at a Glance

More Resources

• Full Driving Rules for South Korea

• World Speed Limit Map

• Speed Unit Converter

• Speeding Fine Calculator