Free tools
Free revision tools for Cambridge students
Quick, no-sign-up tools to check where you stand and answer questions the way examiners want — built from the same mark schemes we use to mark full papers.
Grade boundary calculator
Enter your raw marks and the official thresholds to see your Cambridge A*–E grade, your percentage, and the marks needed for the next grade up. Per-subject calculators for every syllabus we mark.
Open calculatorCommand words explorer
What every Cambridge command word — state, explain, evaluate, justify — actually asks for, and how to answer it to earn the marks. Searchable, with per-subject profiles.
Explore command wordsIB points calculator
Add up your IB Diploma score out of 45 — six subjects (1–7) plus the Theory of Knowledge and Extended Essay bonus — and check whether you meet the pass conditions.
Calculate IB pointsPUM / UMS calculator
Convert a raw mark to a Percentage Uniform Mark on the 0–100 scale using your A–E thresholds — see your grade and how many marks reach the next one.
Convert to PUMExam countdown & planner
Enter your exam date to see days and weeks left, the revision phase you should be in, and how many past papers a week to clear your target — for any session.
Start the countdown
Want feedback on the actual answer, not just a grade?
A grade estimate tells you where you landed. MarkScheme tells you why — upload your paper and get mark-by-mark feedback against the real Cambridge scheme.
Mark a paper freeLooking for written guides instead? Browse all revision guides.