Glasgow does not grade in percentages. It uses a 22-point scale running from A1 at the top down to H at the bottom, and your honours class comes from the credit-weighted average of those points. This calculator does that arithmetic and tells you which band you are currently in.
Enter each course, the grade you were awarded on Glasgow’s 22-point scale, and the course’s credit value. Most courses are 20 credits; an honours dissertation is often 40 or 60. Credits matter, because Glasgow averages your grade points weighted by credit.
The 22-point scale in full
| Band | Grades and points | What it means |
|---|---|---|
| A | A1 = 22, A2 = 21, A3 = 20, A4 = 19, A5 = 18 | Excellent |
| B | B1 = 17, B2 = 16, B3 = 15 | Very good |
| C | C1 = 14, C2 = 13, C3 = 12 | Good |
| D | D1 = 11, D2 = 10, D3 = 9 | Satisfactory |
| E | E1 = 8, E2 = 7, E3 = 6 | Weak |
| F | F1 = 5, F2 = 4, F3 = 3 | Poor |
| G | G1 = 2, G2 = 1 | Very poor |
| H | H = 0 | No evidence |
Grades D3 and above are a pass at undergraduate level. An H is not a low mark, it means nothing assessable was submitted, and it enters your average as a zero.
Where the honours classes start
| Class | Grade point average | Roughly |
|---|---|---|
| First Class Honours | 17.5 to 22.0 | a B1 average or better |
| Upper Second (2:1) | 14.5 to 17.0 | a C1 average or better |
| Lower Second (2:2) | 11.5 to 14.0 | a D1 average or better |
| Third Class | 9.0 to 11.0 | a D3 average or better |
One change worth knowing about. The Third Class floor moved from 8.5 to 9.0 in the 2026-27 regulations. If you are working from an older guide, or from a chart someone posted a few years ago, it will put you in a class you are not in.
Why credits change the answer
Glasgow weights your average by credit value, so courses do not count equally. A standard course is usually 20 credits. An honours dissertation is often 40 or 60.
Take two students with identical grades in different places. Both have an A1 and a C3.
- A1 in a 20-credit course, C3 in a 60-credit dissertation: average 14.5, a bare 2:1.
- A1 in the 60-credit dissertation, C3 in the 20-credit course: average 19.5, comfortably a First.
Same two grades, five points apart, two different degree classes. This is why a rough average of your letter grades tells you very little, and why the calculator asks for credits.
Why this page will not give you a US GPA
Plenty of sites will convert a Glasgow grade into an American 4.0 figure. We will not, and the reason is worth stating.
Glasgow publishes no official conversion to the 4.0 scale. It also states that there is no single University conversion scheme and that schemes are not necessarily linear, and its own grade-conversion guidance is marked as not to be used for converting Glasgow grades outward. The percentage tables circulating online mostly descend from an illustrative table that Glasgow has since removed from its regulations.
So any Glasgow to 4.0 number is somebody’s estimate wearing a lab coat. If an application demands a GPA, the honest routes are to give your grade point average on the 22-point scale with the scale explained, to quote your degree classification, or to pay for a formal credential evaluation from WES or ECCTIS, which is what admissions offices actually accept.
If you want a rough figure for an application box anyway, our UK GPA calculator works from degree classification and is clear about being an estimate.
Glasgow is not Aberdeen
Scottish universities do not share one scale, and mixing them up will give you the wrong class.
| Glasgow | Aberdeen | |
|---|---|---|
| Points | 22 down to 0, no G3 | 23 down to 0, has G3, no H |
| First starts at | 17.5 | 18.0 |
| Course grades | rounded to whole points | kept to two decimals |
The practical effect: the same component marks can come out as a B2 at Glasgow and a B3 at Aberdeen, and a student on 17.7 has a First at Glasgow and a 2:1 at Aberdeen. Aberdeen also runs its own Credit Point Calculator inside its Student Hub, so if you study there, use that rather than this.
Common questions
What average do I need for a 2:1 at Glasgow? 14.5. That is a C1 average across your credit-weighted honours courses.
Do first and second year count? Usually not towards the classification. Glasgow classifies on honours-level work, typically years three and four. Enter only your honours courses for a figure that matches what the exam board will see.
What is a good grade point average at Glasgow? Anything from 17.5 is First territory. Around 14.5 to 17.0 is the 2:1 band, which is what most graduate schemes and Master’s courses ask for.
Does a resit grade replace the original? That depends on your School’s rules and any cap it applies to reassessed work. Check with your adviser rather than assuming, and enter whichever grade appears on your transcript.
Is this official? No. The scale and the classification bands come from Glasgow’s published Assessment Regulations, but the arithmetic here is ours and your exam board’s decision is theirs. Treat this as a way to see where you stand, not as a prediction.
Source: University of Glasgow Assessment Regulations, 2026-27 edition. Studied elsewhere in Scotland? Try the Scottish GPA calculator, or browse all our calculators.