A first class degree — usually shortened to a First — is the highest classification awarded for an undergraduate honours degree in the UK. It signals that a student’s overall performance reached the top band of the marking scale, and it carries real weight with employers, postgraduate admissions tutors and professional bodies. Yet the headline figure most students know, an average of 70% or above, hides a more complicated system of year weightings, borderline rules and institutional discretion. Understanding that system early can change how you plan your degree, because not every mark counts equally.
This guide explains what a First is, how it is calculated, how borderline cases are handled, and how it differs from the other classifications. If you are still building your average and want to know where you currently stand, the site’s degree classification calculator can help you model your marks and weightings. Separate guides on this site explain what a 2:1 degree is and what a pass mark at university means; this guide focuses on the First itself, without repeating those explanations in full.
The 70% threshold and what it really means
In most UK universities, a First requires a weighted average of 70% or above across the modules and years that count towards classification. That average is not a simple mean of every mark you have ever received. Modules carry different credit values, so a 20-credit module influences your average twice as much as a 10-credit module. Years are also weighted differently, as explained below. A student who averages 72% in final year but 65% in second year may or may not reach a First, depending on those weightings — which is why two students with similar-looking module marks can end up with different classifications.
It is also worth understanding what 70% means as a mark. University marking is not like school marking, where 90% or more is common for excellent work. At university, marks above 80% are rare and reserved for truly exceptional work, and a mark in the 70s already indicates work that is original, well-argued, thoroughly evidenced and clearly expressed. A First therefore does not require perfection in every assignment. It requires consistently strong performance, with enough marks in the 70s to pull the weighted average over the threshold, and without weak modules dragging it back down.
Year weightings: why final year counts most
Most UK honours degrees weight the final year more heavily than the second year, and exclude the first year from classification altogether, or count it only lightly. A common pattern is 0:40:60 — first year 0%, second year 40%, final year 60% — but institutions vary, and some use 0:50:50, 25:75, or other combinations, particularly for four-year degrees with a placement or study-abroad year. Integrated masters degrees and some professional programmes have their own rules. Your university’s regulations, not general advice, determine your weighting, so find and read them for your specific programme and cohort.
The practical consequence is that first year, while important for learning and progression, usually does not determine your classification. That does not make it unimportant: first-year marks often determine progression, and the skills and knowledge you build then underpin later performance. But if you are aiming for a First, the decisive years are the second and final years, with the final year usually decisive. A strong final year can lift a borderline profile, while a weak final year can pull a strong second year back below 70%.
Weightings also affect strategy. When you know which modules and years count most, you can allocate revision and assignment effort accordingly, without neglecting anything that counts. That does not mean ignoring lighter-weighted modules — every counting mark contributes — but it does mean that a final-year dissertation or major project, which often carries a large credit value, deserves the sustained attention its weighting implies. Students who treat a 40-credit dissertation as just another assignment are undervaluing its effect on their classification.
Borderline rules: what happens at 69.5% and nearby
Borderline rules are where university regulations become most important, and most variable. Many institutions have a borderline zone, typically from around 68% to 69.9%, within which a First may still be awarded if additional conditions are met. A common condition is that a certain proportion of credits — for example, at least half of final-year credits — must be at First-class level, meaning 70% or above. Another common condition is that the dissertation or final-year project must itself be at First-class level. Some institutions use a rounding convention, where an average of 69.5% or above rounds to 70%, while others do not round at all and rely entirely on the borderline criteria.
Because these rules differ, a student at 69.2% at one university may receive a First under its borderline policy, while a student at the same average at another university may receive a 2:1. Neither outcome is a mistake; each follows its institution’s regulations. That variability is also why you should not rely on a single online calculator or a friend’s experience at a different university. Check your own regulations for the borderline zone, the credit condition, and any requirement about the dissertation or project mark, and model your own position against those specific rules.
Borderline consideration is not automatic in every case, and it is not a matter of asking nicely. Where a board of examiners has discretion, it will usually be exercised according to published criteria, applied consistently across a cohort, and recorded in the examination minutes. Extenuating circumstances may also be considered, but through a formal process with evidence, not through an informal appeal after results are published. If you believe your circumstances affected your performance, use the formal route your university provides, within its deadlines, rather than hoping for borderline discretion to cover it.
How a First differs from a 2:1 and a pass
The classification bands below a First are a 2:1, typically 60% to 69%, a 2:2, typically 50% to 59%, a Third, typically 40% to 49%, and below 40%, a fail or, in some cases, an ordinary or pass degree without honours. The difference between a First and a 2:1 is therefore not a different kind of degree, but a different band of the same weighted-average scale. A student at 69% and a student at 70% have both performed strongly; the boundary between them is a convention, applied through the rules described above, not a judgement that one student is fundamentally different from the other.
That said, the boundary matters in practice. Some graduate schemes, scholarships and postgraduate programmes set a First, or a 2:1, as a minimum requirement, and a First can strengthen an application where competition is intense. It can also matter for academic careers, where a First is often expected for funded doctoral places. At the same time, many employers look beyond classification to experience, skills and interview performance, and a 2:1 with strong experience often competes well against a First with none. Classification opens doors; it does not, on its own, determine a career.
A pass, in the sense of passing a degree without honours classification, or passing individual modules, is a different concept again. Passing a module usually requires 40% at undergraduate level, while classification requires an average across counting modules. A student can therefore pass every module yet still receive a lower classification than hoped, if the average falls in a lower band. Conversely, a student who fails a module may still graduate, depending on compensation, resit and programme rules — but that is a separate set of regulations from classification, and it should not be confused with the borderline rules discussed here.
How to work towards a First, realistically
Working towards a First starts with understanding your own marking criteria. For each assignment type in your programme — essays, reports, projects, examinations — find out what distinguishes work in the 70s from work in the 60s. Typically, First-class work shows original or independent thinking, not just accurate summary; it engages critically with sources, rather than describing them; it structures an argument clearly and sustains it throughout; and it uses evidence precisely, with correct referencing. Reading feedback on past work, and comparing it against those criteria, is more useful than simply aiming to write more.
Second, plan around weightings and deadlines. Know which modules count, how much each is worth, and when major pieces of work are due, so that effort is allocated where it has the most effect. That includes starting dissertations and major projects early, because a large, heavily weighted piece of work cannot be rescued by a final burst of writing. It also includes using formative feedback — drafts, tutorials, practice questions — before summative work is submitted, because feedback after submission cannot change a mark that already counts.
Finally, protect the conditions that make good work possible. Consistent sleep, realistic workloads, and early help when a topic or assignment is unclear all affect performance more than last-minute effort. If your marks are close to a boundary, a small, sustained improvement across several modules — a few marks on each assignment, achieved through clearer argument, better evidence and careful proofreading — is usually more achievable than a dramatic leap in a single module. That steady approach is, in practice, how most Firsts are earned.
How classification checking works
To estimate your classification, gather your module marks, credit values and year weightings from your university’s records, and enter them into a classification calculator, such as the site’s degree classification calculator. The result is an estimate based on the information you enter, and it is only as accurate as that information. If your university has borderline rules, dissertation conditions or discounting rules — where the lowest module mark may be disregarded — the calculator’s result should be read alongside those regulations, not instead of them.
If your estimated average is close to 70%, focus on the modules still to come, particularly heavily weighted final-year work, and on any borderline conditions you need to meet, such as the proportion of credits at 70% or above. If your average is comfortably above 70%, the task is to maintain it, not to chase ever-higher marks at the expense of wellbeing or other modules. And if your average is below the threshold, a realistic plan — identifying which remaining modules can lift it, and by how much — is more useful than either panic or complacency. Numbers, used honestly, help you plan; they should not become the only measure of your degree.
Frequently Asked Questions
Is a First the same as 70% in every module? No. A First requires a weighted average of 70% or above across counting modules, not 70% in each one. Some modules may be below 70% and others above, provided the weighted average reaches the threshold and any borderline or dissertation conditions are met.
Does first year count towards a First? Usually not, or only lightly. Most programmes weight second and final years most heavily, with first year excluded or given a small weighting. Check your own programme regulations, because integrated masters and some professional degrees differ.
What happens if I average 69.5%? It depends on your university. Some institutions round 69.5% to 70%; others apply borderline criteria, such as requiring a proportion of credits at 70% or a First-class dissertation. Check your regulations rather than assuming a single national rule.
Can I get a First if I resit a module? Possibly, but resit marks are often capped, commonly at the pass mark, which limits their effect on your average. Resit, compensation and progression rules vary by institution, so check how a resit mark would be treated in your classification calculation.
Is a First required for postgraduate study? Not always. Many taught masters programmes accept a 2:1, and some accept a 2:2 with relevant experience. Funded doctoral places are more competitive and often expect a First or a strong 2:1, but requirements vary by programme and funder, so check each one individually.
A First is a demanding but achievable goal: a weighted average of 70% or above, built steadily across the years and modules that count, with attention to weightings, borderline rules and the quality of argument that marks in the 70s require. Understand your own regulations, plan around them, and let the classification follow from consistently strong work, rather than chasing the number at the expense of the learning behind it.