About the TCD CGPA Calculator
This page is for TCD students who need a quick semester GPA or running cumulative CGPA without logging into anything. Grading follows ECTS Grading Scale (European); we reference the published ECTS scale so you are not guessing grade points from memory. Wrong scale? Tell us — or browse more Ireland 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 TCD transcript.
- Grades map to points on the ECTS 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.
TCD grading system
Trinity College Dublin publishes grades under ECTS Grading Scale (European). The top mark on this scale is A (Excellent) (4.00 points). A failed course usually counts as 0.00 and will drag your cumulative average down until you pass it.
Percentage conversion
Irish universities often align with ECTS. Use your transcript notes for any official conversion.
Frequently asked questions
How do I calculate CGPA at TCD?
Multiply each course's grade point by its credits, add everything up, then divide by total credits. That is the standard formula TCD uses on the ECTS Grading Scale (European). Enter your courses above and the calculator does the arithmetic.
How do I convert TCD CGPA to percentage?
Irish universities often align with ECTS. Use your transcript notes for any official conversion.
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 Trinity College Dublin?
On the ECTS Grading Scale (European), the maximum grade point is 4.00. Straight A (Excellent) grades across every course would give you the top possible CGPA on that scale.
Is this TCD calculator free?
Yes. No account, no download, and nothing you type is sent to our servers. It all runs in your browser.