How Many Questions Should You Practise for the DGT Test?

There is no magic number of questions to practise for the DGT theory test. The honest answer is simple: practise until you pass full mock exams consistently, scoring at least 27 out of 30 several times in a row. Some people get there in a few hundred questions, others need a couple of thousand. Your target is not a total, it is a level of reliability. This guide explains how big the question bank really is, why reviewing wrong answers matters more than raw volume, and how to tell when you are ready.

The short answer: no magic number

Nobody can tell you an exact number of questions that guarantees a pass. The real goal is consistency. When you can sit a full 30-question mock in English and score 27 or higher, again and again, you are ready. On the real exam you get 30 questions in 30 minutes and can make no more than 3 mistakes, so mock performance is the honest measure of readiness. Since 5 February 2026, the exam also includes short video clips that test hazard anticipation, so practise those alongside the written questions.

Chasing a question count is the wrong mindset. Two people can each answer 1,000 questions and get very different results, because one reviews every mistake and the other just clicks through. Focus on your mock scores, not on how many questions you have technically seen.

If you want a structured way to build toward that consistency, our DGT theory test study plan breaks the work into daily sessions. And if you are new to the exam itself, start with the DGT theory test in English guide.

Why is the question bank so large?

The DGT draws its exam questions from a large official bank of several thousand questions. Only 30 appear on any given test, selected across the syllabus. There is no single official public figure for the total, and estimates vary widely, so it is not worth fixating on a headline number. What matters is that the bank is big enough that you cannot memorise it all.

Because you cannot brute-force the whole bank, the smart approach is to learn the rules and patterns behind the questions. The exam tests the same core topics over and over: signs, priority, speed, alcohol limits, safety equipment. Once you understand a rule, you can answer any question about it, even wording you have never seen before.

This is why raw volume alone is misleading. Answering thousands of questions without understanding them just means you will keep making the same mistakes with different words.

Why does quality beat quantity?

The single most valuable habit is reviewing every wrong answer. When you get a question wrong, stop and read the explanation until you understand why the correct option is correct and why you were wrong. This one habit is worth more than hundreds of extra questions answered on autopilot.

A good practice loop looks like this:

• Answer a block of questions in the real exam format.
• After each one, read the explanation, especially when you were wrong.
• Note the topics where you keep slipping, such as signs or right of way.
• Do a focused session on those weak topics before moving on.
• Come back to the same tricky questions a few days later to check they stuck.

Every question on our tests comes with an explanation, so you learn the reason behind the answer rather than just memorising a letter. That is what turns practice into real understanding.

What is a practical target?

A realistic target is to cover every topic on the syllabus at least once, then repeat full mock exams until your scores are steady. Do not try to see every question in the bank. Instead, make sure no topic is a blind spot, then drill mocks until 27 out of 30 feels normal rather than lucky.

A sensible plan for most people:

• Phase one: work through practice questions topic by topic, so you meet the whole syllabus.
• Phase two: switch to full 30-question mock exams, timed to 30 minutes.
• Phase three: keep repeating mocks and re-drill any topic that drags your score down.

How many questions is that in total? It depends on how quickly you improve. Some people are steady after a few hundred, others need a couple of thousand. Both are fine. The number is a by-product of reaching consistency, not a goal in itself.

How do you know when you are ready?

You are ready when you pass mock exams comfortably and consistently. As a rough rule, aim to score 27 or more out of 30 on several different mocks in a row, without running out of time. One good score can be luck. A run of good scores across varied questions is real readiness.

Signs that you are ready to book the exam:

• You score 27 or higher on most full mocks, not just your favourite ones.
• You finish comfortably within the 30 minutes.
• You recognise the common trick wordings and slow down for them.
• Your weak topics are no longer weak, they are just normal.
• New questions feel familiar because you know the rule behind them.

Signs you are not ready yet: your scores swing wildly, you are guessing on whole topics, or you only do well on questions you have already memorised. If that sounds like you, spend more time on the topics that keep costing you marks before you book.

Frequently asked questions

How many questions do I need to practise to pass the DGT test?

There is no fixed number. Practise until you consistently score 27 or more out of 30 on full mock exams. Some people reach that in a few hundred questions, others in a couple of thousand.

How big is the DGT question bank?

The exam draws from a large official bank of several thousand questions. There is no single official public figure for the total, and only 30 questions appear on any given test.

Is it better to do more questions or review my mistakes?

Reviewing mistakes wins. Reading the explanation for every wrong answer teaches you the rule, so you can handle new wording later. Volume without review just repeats the same errors.

Should I try to memorise every question?

No. The bank is too large to memorise, and the exam reuses the same rules with new wording. Learn the rules behind the questions instead of memorising specific answers.

How many mock exams should I pass before booking?

Aim for several full mocks scored 27 out of 30 or higher, in a row, on varied questions. A single good score can be luck; a consistent run means you are genuinely ready.

Sources

• Reglamento General de Conductores (Real Decreto 818/2009): theory exam format, 30 questions, maximum 3 errors, 30 minutes.
• DGT, risk prediction test (test de prediccion de riesgos): dgt.es.

Last updated: August 2026.