For foreigners in Japan

Your Japanese Driving License Starts Here.

MenkyoDojo is a web-based Japanese driving test practice app that helps you learn, prepare, and pass with confidence. Study anytime, anywhere with real exam-style questions.

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Real exam-style mock tests

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How it works

Start your driving test prep in 3 steps

No signup needed — jump straight in.

1
Pick a test Choose karimen, honmen, or the gaimen conversion test. No account required.
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2
Practice in real exam format Answer true/false questions and read the explanation for each one.
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3
Review your mistakes Repeat only the questions you got wrong until they stick.

App features

Everything you need to pass, in one app

Covers karimen, honmen, and the foreign licence conversion test.

Real exam-style tests Practice with the same format as the real test — 50 questions, 90% to pass.

Explanation for every answer See why each answer is right or wrong.

Track your progress by category See at a glance which topics need more work.

Flag questions to review Mark tricky questions and come back to them later.

Practice modes

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Road sign chart Glossary

Exam

Pass forecast

Real-format mock exams

Accuracy by topic

Exam history

Trap-wording radar Your accuracy on each type of wording. The low ones are your weak patterns.

Choose a topic

Road sign chart

Japanese Traffic Rules

The traffic rules that come up most in the written test, organised by topic. Road signs have their own page.

Key Numbers to Memorise

The distances, speeds and time limits the written test asks about, grouped by topic so you don't mix up the similar ones.

Stopping Distance Simulator

See how much further you travel before stopping as speed increases.

A key relationship tested on the written exam: braking distance is proportional to the SQUARE of speed. Double your speed and braking distance roughly quadruples; triple it and it roughly multiplies by nine. Pick two speeds below to compare (shown as a multiplier, not metres — the exact distance depends on road surface, tyres and vehicle weight).

Speed 1Speed 2

Wet road (roughly another ×2)

Braking distance at 100 km/h is about 2.8× that at 60 km/h

We only show a multiplier here, not metres — the exact distance depends heavily on road surface, tyres and vehicle weight.

Speed & stopping distance

Legal speed limits by road and vehicle type, and the two components of stopping distance.

Tips & tricks

Stopping distance = reaction distance (how far you travel before braking starts) + braking distance (from brakes engaging to a full stop). Knowing this split is the whole point of many questions.
Both braking distance and centrifugal force scale with the SQUARE of speed — double the speed means roughly 4x the distance or force, not 2x.
Default limits: 60 km/h for cars on ordinary roads, 30 km/h for mopeds. A moped can never legally exceed 30 km/h even if a sign posts a higher limit.

Important notes

A legal minimum speed (50 km/h) exists only on the main carriageway of expressways — never on ordinary roads.
"Under the speed limit is always safe" is false — rain, night, and traffic density all call for slowing further below the posted limit.
A wet road or worn tyres can roughly double your braking distance compared with dry pavement.

Numbers worth remembering

60 km/h — What is the statutory maximum speed for a car on an ordinary road?
60 km/h on an ordinary road. Where a sign posts a limit, follow the sign instead.
30 km/h — What is the statutory maximum speed for a moped?
30 km/h. Even where a sign posts 40 or 50, a moped may not exceed 30.
4× — If your speed doubles, roughly how many times longer is the braking distance?
About four times — braking distance is proportional to the square of speed. Centrifugal force and impact force scale the same way.
2× — On a wet road, the braking distance can be roughly how many times that of a dry road?
About twice — the tyres grip less. Slow down and leave a longer gap.

Practice with the Number Drill mode

Karimen vs honmen vs gaimen kirikae

Key Numbers to MemoriseThe distances, speeds and time limits the written test asks about, grouped by topic so you don't mix up the similar ones.Japanese Traffic RulesThe traffic rules that come up most in the written test, organised by topic. Road signs have their own page.

Guide

Guides to the paperwork and steps involved in getting a licence.

How to get a licence

Driving school or direct application — know the cost and time difference before you start.

Karimen Written Test Guide

What the karimen (provisional licence) written test covers, and the pass line.

Honmen Written Test Guide

The honmen (full licence) written test covers everything in karimen, plus applied topics like expressways and motorcycles.

Hazard Prediction Question Guide

How hazard-prediction questions on the honmen exam are scored, with a free worked example.

Licence conversion guide

The steps, documents and exempt countries for converting a foreign licence to a Japanese one.

Document pre-check

Clear the reasons applications get turned away at the counter — before your appointment. 15 questions, about 3 minutes.

Legal definition cards

The written test asks about Japanese legal definitions directly. These cards drill the numbers and the exact boundaries.

Privacy policy

The Japanese text is authoritative. Other languages are provided for understanding; where they differ, the Japanese governs.

Terms of use

The Japanese text is authoritative. Other languages are provided for understanding; where they differ, the Japanese governs.

Glossary

Japanese terms that come up constantly in the theory test. Learn the Japanese wording too.

Frequently Asked Questions

Common questions about karimen, honmen, and foreign licence conversion.

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