Find out whereyou actually
Enter your marks to estimate your IB subject grades, total score, and diploma outcome using the latest official grade boundaries.
Start entering your scores below.
Group 1: Studies in Language and Literature
0/3 components entered
Group 3: Individuals and Societies
0/0 components entered
Group 5: Mathematics
0/0 components entered
Group 2: Language Acquisition
0/4 components entered
Group 4: Sciences
0/0 components entered
Group 6: The Arts
0/0 components entered
Core Group
Theory of Knowledge
Extended Essay
Core points
Total Grade
Total points
0 / 45
- –Not all 6 subjects have been entered
- –Total points below 24
- –0 HL subjects selected — need 3 or 4
Subject breakdown
How the IB Grade Calculator Works
This calculator uses official IB grade boundaries to estimate your subject grades and total diploma score. Select your exam session and timezone, choose your six subjects at Higher Level (HL) or Standard Level (SL), then enter your expected marks for each paper. The calculator weights each component using official IB weightings and compares your total against real grade boundaries to predict your 1-7 grade per subject.
IB Grading Scale: How Scores Work
The IB Diploma is scored out of 45 points. You take six subjects, each graded 1-7, for a maximum of 42 subject points. Up to 3 additional core points come from your Theory of Knowledge (TOK) and Extended Essay (EE) grades combined. To be awarded the diploma you need at least 24 points, with no grade 1 in any subject and no more than two 2s or three 3s. An E in either TOK or EE is an automatic fail regardless of your total score.
What Are IB Grade Boundaries?
Grade boundaries are the minimum marks needed for each grade level (1-7) in a given subject. They change every exam session based on exam difficulty and global student performance. For example, a 7 in Math AA HL might require 72% in one session but only 68% in another. This calculator includes boundaries from May 2019 through the most recent available session so you can see how they shift over time and estimate where you stand.
Timezones and Sessions
The IB runs exams in two main sessions: May and November. Within each session there are multiple timezones. Different regions can sit different paper variants, so the matching grade boundaries may differ as well. Make sure you select the correct session and timezone for the most accurate prediction.
Predicted Grades vs. This Calculator
Your school's predicted grade is your teacher's assessment based on coursework, mock exams, and IA drafts. This calculator estimates your grade purely from marks against historical boundaries. Both are useful: predicted grades go to universities for conditional offers, while this calculator helps you understand exactly how many marks you need on each paper to hit your target grade.
Made for IB students, by an IB student.