How Long Do I Need to Revise for IB? Timelines & Tips

Staring at your IB syllabus (opens in a new tab) and wondering when you should actually start revising? You're not alone. Loads of students put off revision planning because they're not sure how much time they really need.

There's no magic number that works for everyone. Your revision timeline depends on your subjects, your target grades, and how confident you feel with the content. But having a clear plan makes everything far less overwhelming.

This guide breaks how long you should revise for IB and provides you with a realistic timeline for your study sessions.

Key Takeaways

• Start revising at least 3-6 months before your IB exams to give yourself proper time to cover everything without stress.

• Tailor your revision plan to your specific subjects, goals, and schedule rather than following what everyone else is doing.

• Quality beats quantity every time - focused, active revision sessions are way more effective than just reading notes for hours.

• Even if you're starting late, you can still achieve great results by focusing on high-impact strategies like past papers and mark schemes.

When Should You Start Revising for IB?

The ideal time to start serious revision is 3-5 months before your first exam. For May exams, that means getting started around December or January.

If you start earlier - say, September or October - that's even better. Use that time for lighter consolidation: 

• Keeping on top of your notes

• Completing topic-based questions

• Linking concepts with mind maps

• Identifying weak areas with our Strengths and Weaknesses tool

Leaving it until March or April leaves you with too little time to cover six subjects properly. And cramming in the final weeks leads to surface-level knowledge that rarely holds up under exam pressure.

A good rule of thumb:

• September–December: Light consolidation, topic-by-topic review

• January–March: Focused, structured revision - one topic per session

• April–May: Past paper practice and exam technique under timed conditions

How Many Hours Per Day Should You Revise for IB?

Sitting at a desk for eight hours while distracted is far less effective than two hours of focused, active revision. Birmingham City University suggests (opens in a new tab) using the spaced repetition method. This involves committing to shorter, more frequent bursts of revision over time to help embed knowledge into your long term memory.

Here's a realistic guide to daily revision hours depending on your stage:

These figures assume active revision. This means:

• Answering past paper questions

• Practising essay plans

• Using flashcards - alone or collaboratively

• Creating mind maps

• Completing timed mock exams

Passive reading of textbooks does not count in the same way.

Always build in breaks. The Pomodoro Technique - 25 minutes of focused work followed by a 5-minute break - is a popular and research-supported approach to maintaining concentration.  (opens in a new tab)

HL vs SL: Does Revision Time Differ?

Yes. Higher Level subjects involve more content, greater depth of analysis, and more challenging exam papers.

As a rough guide, allocate roughly twice as much revision time to each HL subject compared to each SL subject. Most IB students take three HL and three SL subjects.  (opens in a new tab)

Don’t simply divide revision time between all six of your subjects. If History HL is your weakest subject, it deserves the most time in your schedule. 

Use a diagnostic approach: 

• Complete a past paper question under timed conditions for each subject early in your revision. 

• Assess your answers against the official mark scheme.

• RAG your responses.

  • Red - Weak - needs more revision time

  • Amber - Shaky - needs some revision time

  • Green - Solid knowledge - minimal revision time needed

• This tells you quickly where the gaps are and where to direct your energy.

Your IB Revision Timeline

There’s no set way of revising. And at Save My Exams, we have a vast array of revision techniques to explore. It’s important to find the right approach for you. However, here’s a month-by-month breakdown to guide your planning:

Remember, this is a guide, not a rigid prescription. Adapt it to your personal IB revision timetable and circumstances.

6 Tips for Sticking to Your Revision Plan

1. Set small, daily goals rather than massive weekly targets. 

   • "Complete and mark 3 photosynthesis questions" feels more achievable than "Study for five hours."

2. Use active revision techniques that force your brain to work. Try:

   • Blurting everything you remember

   • Retrieval practice

   • Teaching concepts to others 

3. Track your progress by ticking off topics from your syllabus. 

4. Study groups can help if they're focused. But if your friends turn every study session into a social hour, you're better off alone.

5. Use Save My Exams IB revision resources. 

   • These include everything you need, from flashcards to past papers. 

6. Reward yourself for hitting targets. Finished a tough past paper? Take the evening off guilt-free.

Managing IAs, the Extended Essay, and TOK Alongside Revision

The IB is not just written exams. Internal Assessments (IAs), the Extended Essay (EE), and Theory of Knowledge (TOK) all count towards your final score.  (opens in a new tab)

Aim to have all IA drafts, your EE, and your TOK essay either submitted or in final review by December or January at the latest. This frees up the spring term for pure exam revision without the mental load of coursework hanging over you.

Frequently Asked Questions

Is 2 weeks enough to revise for IB exams?

Two weeks is definitely not ideal, but it's better than nothing. Focus exclusively on past papers and mark schemes to understand what examiners want. Prioritise your weakest subjects and highest-weighted papers. You won't have time to learn everything, so be strategic about what you focus on.

How many hours should I revise each day for IB?

During term time, aim for 2-3 hours of focused revision daily outside of homework. During study leave, 3-4 hours of quality revision is realistic for most students. More than 8 hours usually leads to diminishing returns as your brain gets tired. We explain why in our article on whether you can revise too much. Remember, quality matters more than quantity.

Should I revise during school holidays?

Yes, school holidays are brilliant opportunities for revision without the pressure of daily homework. Use them to cover major topics or work through past papers. However, don't sacrifice all your downtime - your brain needs rest too. Aim for a few focused hours each day rather than all day every day.

Nail Your Target IB Score With Save My Exams

Successful IB revision isn't about who starts earliest or studies longest. It's about having a clear, realistic plan that you can actually stick to.

If you're starting with six months to go, brilliant. If you're starting with three months, that's still plenty of time. Even if you're starting late, focused effort on the right things can make a real difference.

The key is adapting your approach to your situation rather than panicking because you didn't start when someone told you to.

Use your time wisely and dig into Save My Exams IB revision resources. Everything is at your fingertips ready to explore.

Remember, the goal isn't perfect preparation - it's feeling confident and ready on exam day. Start where you are, use what you have, and make it work for you.

References:

• IBO - IBDP Curriculum (opens in a new tab)

• Birmingham City University - Spaced repetition and the 2357 method (opens in a new tab)