Grade Percentage Calculator — Any Score Out of Any Total
A score of 15 out of 20 is 75%, and the way to get there is to divide the mark you scored by the mark available and multiply by 100: 15 ÷ 20 = 0.75, and 0.75 × 100 = 75. Enter your own two numbers below and the calculator gives the percentage, the grade it falls in, and how many marks separated you from the band above. Because the band depends on where you study, you can switch between the US, UK, Indian, Australian and Canadian schemes — 75% is a C in one and a First in another.
One Division, and Then a Local Decision
Turning a mark into a percentage is arithmetic that never varies. Turning that percentage into a grade is a judgement your institution has already made for you. Keep the two steps apart in your head. Only the first one has a right answer.
Percentage = (mark scored ÷ mark available) × 100 43 out of 50 → (43 ÷ 50) × 100 → 0.86 × 100 → 86%
The total does not have to be 100, or round, or even a whole number. A mark of 43.5 out of 60 is 72.5%, and half marks behave exactly like whole ones once the division is done. What changes between countries is the table that 86% or 72.5% is then read against.
75% Is a C, a First and a Distinction
The clearest way to see how much the local table matters is to take a single mark and look it up in five places at once. Nothing about the performance changes across this row; only the label does.
| Mark | Percentage | US letter | UK classification | India CBSE | Australia | Canada |
|---|---|---|---|---|---|---|
| 15/20 | 75% | C | First | B1 | D | B |
| 43/50 | 86% | B | First | A2 | HD | A |
| 34/50 | 68% | D+ | 2:1 | B2 | C | C+ |
| 27/40 | 67.5% | D+ | 2:1 | B2 | C | C+ |
| 55/60 | 91.67% | A− | First | A1 | HD | A+ |
The 34 out of 50 row is the one to dwell on. At 68% that student has a D+ in the United States, a grade that passes and little more, and a 2:1 in the United Kingdom — the classification most graduate schemes ask for by name. Neither reading is wrong.
The top row carries a trap worth naming. Australia abbreviates Distinction to D, so the 15/20 row shows a D in the Australian column and a C in the American one — and the Australian D is the better grade of the two by a distance. A D on an Australian transcript sits one band below the top of a five-band scale; a D on an American one sits in the lowest passing range there is. This is why a transcript sent abroad travels with the issuing institution's scale attached, and why an admissions office will not take a bare letter, or a bare percentage, at face value.
Marks Out of 50
More people search for a score out of 50 than any other total, which makes sense: it is the standard length of a school test paper and of a great many university coursework tasks. Every mark from 50 down to 25 is below, with the US letter and UK classification alongside.
| Score | Percentage | US letter | UK class |
|---|---|---|---|
| 50/50 | 100% | A | First |
| 49/50 | 98% | A | First |
| 48/50 | 96% | A | First |
| 47/50 | 94% | A | First |
| 46/50 | 92% | A− | First |
| 45/50 | 90% | A− | First |
| 44/50 | 88% | B+ | First |
| 43/50 | 86% | B | First |
| 42/50 | 84% | B | First |
| 41/50 | 82% | B− | First |
| 40/50 | 80% | B− | First |
| 39/50 | 78% | C+ | First |
| 38/50 | 76% | C | First |
| 37/50 | 74% | C | First |
| 36/50 | 72% | C− | First |
| 35/50 | 70% | C− | First |
| 34/50 | 68% | D+ | 2:1 |
| 33/50 | 66% | D | 2:1 |
| 32/50 | 64% | D | 2:1 |
| 31/50 | 62% | D− | 2:1 |
| 30/50 | 60% | D− | 2:1 |
| 29/50 | 58% | F | 2:2 |
| 28/50 | 56% | F | 2:2 |
| 27/50 | 54% | F | 2:2 |
| 26/50 | 52% | F | 2:2 |
| 25/50 | 50% | F | 2:2 |
Each mark out of 50 is worth exactly two percentage points. That makes the total unforgiving at the edges. No whole mark lands on 69% or 89%, so a paper out of 50 never sits one point below a boundary. It is either over, or well under.
Marks Out of 20, 40 and 60
The other three totals behave quite differently from one another. Step size is the reason. Each column below drops by one mark of its own per row, which makes the gap visible: out of 20 the percentage falls five points at a time, out of 40 two and a half, and out of 60 by about 1.67.
| Out of 20 | % | Out of 40 | % | Out of 60 | % |
|---|---|---|---|---|---|
| 20/20 | 100% | 40/40 | 100% | 60/60 | 100% |
| 19/20 | 95% | 39/40 | 97.5% | 59/60 | 98.33% |
| 18/20 | 90% | 38/40 | 95% | 58/60 | 96.67% |
| 17/20 | 85% | 37/40 | 92.5% | 57/60 | 95% |
| 16/20 | 80% | 36/40 | 90% | 56/60 | 93.33% |
| 15/20 | 75% | 35/40 | 87.5% | 55/60 | 91.67% |
| 14/20 | 70% | 34/40 | 85% | 54/60 | 90% |
| 13/20 | 65% | 33/40 | 82.5% | 53/60 | 88.33% |
| 12/20 | 60% | 32/40 | 80% | 52/60 | 86.67% |
| 11/20 | 55% | 31/40 | 77.5% | 51/60 | 85% |
| 10/20 | 50% | 30/40 | 75% | 50/60 | 83.33% |
A test out of 20 is the coarsest of the three. One mark is five percent. So the difference between a 2:1 and a First on a 20-mark paper is a single question, with no partial credit to soften it. Out of 60 the same step moves you a third as far, which is why longer papers feel fairer at the boundaries — there are marks available that land between the bands rather than vaulting them.
Where Rounding Decides the Grade
Most of the time rounding is cosmetic. At a band edge it is not. Marks that land within half a point of a boundary are worth checking by hand rather than trusting to a spreadsheet.
| Mark | Exact | Rounded | UK class on exact | UK class on rounded |
|---|---|---|---|---|
| 34.5/50 | 69% | 69% | 2:1 | 2:1 |
| 41.7/60 | 69.5% | 70% | 2:1 | First |
| 29.6/50 | 59.2% | 59% | 2:2 | 2:2 |
| 23.8/40 | 59.5% | 60% | 2:2 | 2:1 |
Two of those four rows change classification depending on when the rounding happens. Whether a mark of 41.7 out of 60 is a 2:1 or a First is not a mathematical question at all — it depends on whether the regulations round the component before the band is applied or after. Institutions differ, and a handbook that is silent on it is worth an email to the registry if you are a mark away.
When the Simple Division Is the Wrong Tool
Adding up raw marks across assessments only works when the assessments carry weight in proportion to their size, and they usually do not. A short piece of coursework worth 30% of the module and a long exam worth 70% have to be converted separately and then combined.
Weighted total = Σ (component percentage × component weight) coursework 36/40 = 90%, weight 0.30 → 27.0 exam 52/80 = 65%, weight 0.70 → 45.5 module mark = 27.0 + 45.5 = 72.5%
Pooling the raw marks instead — 88 out of 120 — gives 73.3%, which looks close enough to be reassuring and is wrong by eight tenths of a point. On this occasion both land in the same band, which is exactly why the error survives: it is invisible until the one time it is not. Our percentage calculator handles the component conversions, and the GPA calculator does the same weighting across whole courses using credit values rather than percentages.
Germany Runs the Scale Backwards
Among the systems a percentage might need converting into, the German one deserves singling out, because the numbers run the other way: 1.0 is the best grade available and 5.0 is a fail. Conversions into it normally use the modified Bavarian formula, which maps a mark onto the 1–5 range relative to the top mark and the pass mark rather than to fixed bands.
German grade = 1 + 3 × (Nmax − Nactual) ÷ (Nmax − Nmin) Nmax = 100, Nmin = 50, Nactual = 86 1 + 3 × (100 − 86) ÷ (100 − 50) = 1 + 3 × 0.28 = 1.84
An 86% therefore converts to roughly 1.8, a strong grade. The formula is sensitive to the pass mark you feed it: the same 86% against a pass mark of 40 rather than 50 gives 1.7. That is why it is not in the selector above — it needs a third input that only your own institution can supply, and guessing it would produce a confident number with no basis.
Verification and Review Date
Every figure in the tables on this page is generated from the division shown at the top rather than typed in, so the arithmetic cannot drift from the formula it demonstrates. The grade bands were checked against the published conventions for each country, and they are conventions rather than rules — awarding bands are set by the institution, so treat the grade column as a strong default and your own handbook as the authority. This calculator was last reviewed on 10 October 2026. Our about page describes how tools on this site are built and verified.
For a single mark you do not need a form at all. The AI calculator answers "what grade is 34 out of 50" in a sentence, and sends you back here when you want to compare scales or work out what the next grade needs.
Grade Percentage Questions
What is 15 out of 20 as a percentage?
How do I turn any score into a percentage?
Why does the same percentage give a different grade in different countries?
Does rounding change my grade?
What if my assessments are weighted?
Can a percentage be above 100?
Is a percentage the same as a GPA?
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