Exam Weighting Calculator
Find out how much your exam is worth and how different exam scores will change your final module grade. Enter your coursework average and the weightings to see the impact of every percentage point.
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How Exam Weighting Works
Your final module mark combines coursework and exam results using their respective weightings:
Final Mark = (Coursework Mark × Coursework Weight) + (Exam Mark × Exam Weight)
Each percentage point on the exam changes your final mark by the exam's weighting expressed as a decimal. With a 60% exam weighting, each extra mark on the exam adds 0.6 percentage points to your final module grade. Scoring 10 marks higher on the exam therefore adds 6 percentage points to your final mark — enough to move from a 2:1 to a First in many cases.
Understanding Sensitivity: What Revision Effort Is Actually Worth
The exam sensitivity figure this calculator shows is one of the most practically useful numbers for revision planning. It tells you how much each additional exam mark is worth to your final module grade. With a 60% exam weighting and a coursework mark of 65%, your final grade before the exam is 26% secured. Every percentage point you gain on the exam adds 0.6% to your final mark.
This has a direct implication for revision strategy. If you have two modules — one with a 60% exam weighting and one with a 40% exam weighting — the same revision effort on the first module is 50% more valuable to your final marks than on the second. Students who allocate revision time proportional to exam weighting consistently outperform those who spend equal time on all subjects.
A second implication: with a high exam weighting (70%+), your coursework grade has limited ability to protect your final mark. A student who scored 75% coursework on a module with an 80% exam weighting has only 15% secured before the exam. Even strong coursework performance cannot substitute for exam preparation on high-weighting modules.
Grade Boundary Targets: How to Use This Calculator Strategically
The most useful output this calculator provides is the "Exam Score Needed for Each Grade Boundary" table. This table answers the question every student actually wants answered: "Given what I've got in coursework, what do I need on the exam for a First / 2:1 / pass?" Use these numbers to set a concrete revision target rather than vague ambitions.
If the table shows you need 85% on the exam to achieve a First, that is useful information: it tells you a First may be a stretch but is achievable with strong performance. If it shows you need 105% (impossible), it tells you to focus your effort on other modules where First-class is still attainable. This kind of strategic assessment of where to direct effort is one of the most impactful decisions a student can make in the run-up to exams.
Frequently Asked Questions
How much does each exam mark change my grade?
Each percentage point on the exam changes your final module mark by the exam weighting divided by 100. With a 60% exam weighting, each mark is worth 0.6% of your final grade. With an 80% exam weighting, each mark is worth 0.8%. The calculator shows your exact sensitivity figure under "Exam Sensitivity."
Is the exam or coursework more important?
Whichever has the higher weighting has more influence on your final grade. If the exam is worth 60% and coursework 40%, the exam influences your mark 50% more than coursework does. This matters for revision planning: allocating study time proportionally to weighting is more effective than equal time on all subjects.
What if my exam is worth 100%?
If the exam is 100% of the module, your exam mark equals your module mark. There is no coursework contribution to enter. Leave the coursework fields blank or at 0 and enter 100 for exam weighting. The result is simply your exam score as your module grade.
Can a strong exam rescue a weak coursework mark?
It depends on the weighting. With a 70% exam weighting and a 50% coursework mark, your coursework contributes 15% to your final mark. Even a perfect exam score of 100% would only give you 70% + 15% = 85% maximum. With a 40% exam weighting and the same coursework, you can only score 40% + 15% = 55% maximum. Run the numbers with this calculator to understand your specific scenario.
How do I find my exam weighting?
Check your module handbook, module guide, or university VLE (Moodle, Blackboard, Canvas). The assessment breakdown showing exam and coursework percentages is usually listed in the module specification, assessment section, or first lecture slides. If you cannot find it, email the module leader.
What if I have multiple exams in one module?
If a module has multiple exam components (e.g. a midterm and a final exam), treat each as a separate component and combine them. Use our Coursework Grade Calculator to calculate your combined exam result first, then use that as the "exam mark" input here.
Related Tools
- What Exam Score Do I Need to Pass? — find the minimum exam mark to pass your module
- Module Grade Calculator — full module grade breakdown with targets
- Coursework Grade Calculator — calculate weighted coursework totals
- UK Degree Classification Calculator — see how module marks affect your degree
- Exam Grading Explained — how UK university exams are marked
Disclaimer: This calculator uses the standard weighted formula. Some modules have additional rules such as minimum exam marks required to pass regardless of coursework, or penalty deductions for late submission. Always check your module handbook for any special regulations.