The Grade Calculator
That Shows You Everything
Convert marks to a grade instantly — or work backwards to find exactly what score you need to hit your target. Two tools in one.
Two tools, one calculator
Whether you want to know your current grade or plan what you need to achieve — the calculator has you covered in seconds.
Choose your mode
Use “What’s My Grade?” to convert marks you already have. Use “What Score Do I Need?” to plan ahead for upcoming assessments.
Enter your numbers
Type your score and total marks available. For the target tool, add your existing marks and the remaining marks still up for grabs.
Get your answer
See your percentage, letter grade, and exactly how many more marks you need to reach the next grade boundary — instantly.
What Is a Grade Calculator?
A grade calculator converts raw marks into a percentage and letter grade, and can also work in reverse — given a target grade, it calculates exactly what score you need on remaining assessments. It removes the guesswork from academic performance tracking, letting students and teachers instantly see where a mark sits on a grade scale and what is required to move up.
Unlike a grade average calculator (which combines multiple subjects into an overall average), a grade calculator focuses on a single assessment or course — answering the two most common questions: “What grade did I get?” and “What do I need to score?”
← Back to Average Calculators — grade average, GPA, mean, weighted & moreHow to Calculate a Grade from Marks
Converting raw marks to a percentage is a straightforward two-step calculation:
Example: 43 out of 60
= (43 ÷ 60) × 100 = 71.67%
Once you have the percentage, it maps to a letter grade based on your chosen scale. On the standard UK scale, 71.67% falls in the 70–79% band — a Grade B. On the GCSE scale, the same percentage would typically correspond to a Grade 6 or 7 depending on that year’s grade boundaries.
Grade Scales — UK, US, GCSE, and A-Level
Different examinations and countries use different grade scales. The four most common are:
Standard UK Grade Scale
| Grade | Percentage | Standard |
|---|---|---|
| A* | 90–100% | Outstanding |
| A | 80–89% | Excellent |
| B | 70–79% | Good |
| C | 60–69% | Satisfactory |
| D | 50–59% | Below average |
| F | Below 50% | Fail |
GCSE Grade Scale (9–1)
Since 2017, GCSEs in England use a 9–1 numerical scale replacing the old A*–G system. Grade 4 is the standard pass and grade 5 is the “strong pass” used as a threshold by many sixth forms and employers.
| Grade | Approx. Percentage | Equivalent Old Grade |
|---|---|---|
| 9 | ~90%+ | A* (top) |
| 8 | ~80–89% | A*/A |
| 7 | ~70–79% | A |
| 6 | ~60–69% | B |
| 5 | ~50–59% | B/C (strong pass) |
| 4 | ~40–49% | C (standard pass) |
| 3 | ~30–39% | D |
| 1–2 | Below 30% | E/F/G |
Important: GCSE grade boundaries are set each year by the exam board based on student performance and are not fixed percentages. The figures above are approximate. Actual boundaries for a specific paper may be higher or lower — always check the official grade boundary documents published by AQA, Edexcel, or OCR after results are released.
A-Level Grade Scale
A-Levels use a six-grade scale from A* down to E, with U (Ungraded) for those who do not reach the minimum standard. Like GCSEs, A-Level boundaries vary by subject and exam series.
| Grade | Approx. Percentage | UCAS Points (2024) |
|---|---|---|
| A* | ~90%+ | 56 |
| A | ~80–89% | 48 |
| B | ~70–79% | 40 |
| C | ~60–69% | 32 |
| D | ~50–59% | 24 |
| E | ~40–49% | 16 |
| U | Below 40% | 0 |
How to Calculate What Score You Need
The “What Score Do I Need?” tool solves one of the most useful calculations in academic planning. Suppose you have completed assessments worth 120 marks out of a total 200 in your course, scoring 95 of those 120. You need an overall 70% to pass. What must you score on the remaining 80 marks?
= 70% × 200 = 140 marks needed overall
Marks Still Needed = Target Total − Already Scored
= 140 − 95 = 45 marks from the remaining 80
Required % on remaining = 45 ÷ 80 × 100 = 56.25%
This tells you that scoring 56.25% on the remaining assessments is enough to achieve 70% overall — even though you currently sit at 79.2% (95/120). The reverse is also useful: if the required score exceeds 100%, you know the target is no longer mathematically achievable.
Why Grade Boundaries Matter
Grade boundaries are the minimum marks required for each grade in a specific examination. They are set after an exam has been sat, based on the performance of the entire cohort and the difficulty of that particular paper. This means:
- A 70% may be a Grade B in one exam series and a Grade A in another if the paper was harder.
- A student who scored 68% might receive a Grade A if the boundary was set at 65% for that paper.
- Percentage-to-grade conversions in calculators are approximations — exact grades depend on official post-exam boundaries.
For planning and progress tracking purposes, fixed percentage bands are perfectly useful. For knowing your actual exam result, always refer to the official grade boundaries published by your exam board.
Grade Calculators for Teachers
Teachers use grade calculators to quickly check where a student’s raw mark falls, to identify borderline cases, and to communicate results clearly to students and parents. When marking a set of papers, being able to type in a raw score and instantly see the percentage and grade — without reaching for a calculator or looking up a conversion table — saves significant time.
The “What Score Do I Need?” function is also useful in a pastoral or academic guidance context: showing a student exactly how attainable their target grade is (or how close they are to a grade boundary) is a powerful motivational tool.
Common questions about grades
Need your overall grade average?
Combine all your modules — weighted by credit hours — and get your GPA and UK degree class.