Turn marks obtained out of total marks into a percentage and letter grade.
The Exam Percentage Calculator converts marks obtained out of a total into a percentage, and also shows an approximate letter grade based on common grading bands. This is one of the most frequently needed quick calculations for students throughout the school year — checking a single test result, adding up marks across several papers in a board exam, or converting a raw score reported by a teacher into the percentage format used on report cards and application forms.
To use it, enter the marks you obtained and the total marks the exam was out of, then press "Calculate Percentage." The tool divides your marks by the total, multiplies by 100, and rounds to two decimal places, matching the standard method used by schools and universities everywhere. Alongside the percentage, it also shows an indicative letter grade using a common banding (90% and above as A+, 80–89% as A, and so on down to a fail below 33%/35% depending on convention), which is useful for a quick sense of where a score sits, though your own institution's exact grade boundaries may differ.
This tool is useful well beyond a single exam. Many students use it to combine marks from multiple papers in a board or university exam by first adding up all the "marks obtained" and all the "total marks" figures from their mark sheet, then entering the combined totals here to get an overall percentage instantly, without needing a calculator or doing long division by hand. It is also useful for quickly checking a teacher's grading if a report card only lists a raw score rather than a percentage, or when comparing scores from different exams that were out of different totals (for example a 45 out of 50 test versus a 90 out of 100 test) — converting both to a percentage makes the comparison meaningful.
Because grading bands and pass marks vary by country, school board, and even individual institution, treat the letter grade shown here as an approximate reference rather than an official determination. Always check your own school's or exam board's published grading scale for the boundaries that will actually appear on your official transcript or mark sheet.
All calculations run instantly in your browser using JavaScript, so your exam scores are never transmitted anywhere and the tool works the same whether you are checking one paper or combining marks from an entire exam series.
For students in exam boards that report results only as raw scores initially, calculating the percentage yourself as soon as marks are released can also help you gauge your standing before the official percentage or grade is formally published on your report card weeks later.
When comparing results across two exams that used different total marks — for example a mid-term worth 50 marks and a final worth 100 — converting both to a percentage using this tool first makes it possible to meaningfully compare performance or compute a combined weighted score, which a raw marks comparison alone would not allow.
Yes. Add up the marks obtained and total marks across all papers separately, then enter the two combined totals to get your overall percentage across the whole exam series.
No, it is an approximate reference using common grading bands. Your school or exam board's official grading scale may use different percentage boundaries.
Double-check your entries; marks obtained normally cannot exceed the total unless bonus marks were awarded and included separately by your instructor.
Yes, results are rounded to two decimal places, which matches how most report cards and mark sheets typically present percentage scores.
No. This tool converts raw marks (e.g. 425 out of 500) into a percentage for a single exam or combined exam series, while the CGPA converter translates a cumulative grade point average into an equivalent percentage.
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