About the Imperial CGPA Calculator
This page is for Imperial students who need a quick semester GPA or running cumulative CGPA without logging into anything. Grading follows UK Degree Classification (Honours); we reference the published Class scale so you are not guessing grade points from memory. Wrong scale? Tell us — or browse more United Kingdom calculators.
How to use this calculator
- Choose Semester GPA if you only need this term, or CGPA if you are averaging multiple semesters.
- Add each subject with its credit hours and the letter grade from your Imperial transcript.
- Grades map to points on the Class scale for you — no manual lookup table needed.
- Need a percentage figure or a target GPA plan? Switch tabs or turn on Pro mode above the results.
Imperial grading system
Imperial College London publishes grades under UK Degree Classification (Honours). The top mark on this scale is First Class (1st) (4.00 points). A failed course usually counts as 0.00 and will drag your cumulative average down until you pass it.
Percentage conversion
UK degrees are usually classified (First, 2:1, 2:2) rather than expressed as a percentage CGPA.
Frequently asked questions
How do I calculate CGPA at Imperial?
Multiply each course's grade point by its credits, add everything up, then divide by total credits. That is the standard formula Imperial uses on the UK Degree Classification (Honours). Enter your courses above and the calculator does the arithmetic.
How do I convert Imperial CGPA to percentage?
UK degrees are usually classified (First, 2:1, 2:2) rather than expressed as a percentage CGPA.
How do I work out CGPA from semester GPAs?
Weight each semester's GPA by its credit hours, add those weighted scores, then divide by total credits completed. CGPA mode on this page is built for exactly that — add each semester row instead of individual courses.
What is the highest CGPA at Imperial College London?
On the UK Degree Classification (Honours), the maximum grade point is 4.00. Straight First Class (1st) grades across every course would give you the top possible CGPA on that scale.
Is this Imperial calculator free?
Yes. No account, no download, and nothing you type is sent to our servers. It all runs in your browser.