Quick Answer
Percentage is calculated as (Marks Obtained ÷ Total Marks) × 100, then mapped to a letter grade using a grading scale, commonly A+ for 90%+, A for 85%+, B+ for 80%+, B for 75%+, C+ for 70%+, C for 60%+, D for 50%+, and F below 50%.
What Is Grade Calculator?
A grade calculator converts raw exam or assignment marks into a percentage, and then into the letter grade your institution uses to report results. While the percentage calculation is always the same simple division, the letter-grade boundaries (what percentage counts as an A versus a B) vary by country, school board, and even individual institution.
The scale used here follows a common general/Pakistan-style grading pattern: A+ at 90% and above, A at 85%, B+ at 80%, B at 75%, C+ at 70%, C at 60%, D at 50%, and F below 50%. Many universities and boards use slightly different cutoffs, so this is a useful general reference rather than a universal standard, always check your specific institution's official grading policy for anything that affects your transcript or GPA.
Alongside the letter grade, the calculator also shows an approximate grade point on a 4.0 scale, useful for students who need to estimate their GPA contribution from a single exam or assignment before official results are posted.
How to Use
- 1Enter the marks you obtained.
- 2Enter the total marks the exam or assignment was out of.
- 3The calculator instantly shows your percentage, letter grade, and approximate grade point.
Formula
Percentage = (Marks Obtained ÷ Total Marks) × 100A+ ≥90% · A ≥85% · B+ ≥80% · B ≥75% · C+ ≥70% · C ≥60% · D ≥50% · F <50%Example: 85 marks obtained out of 100
- Percentage = (85 ÷ 100) × 100 = 85%
Tips & Things to Know
- Grading scales vary meaningfully between institutions and countries, always confirm the official scale your school, college, or university uses before relying on a calculated letter grade for anything important.
- This tool calculates a single assignment or exam's grade, your overall course or semester grade may be weighted differently across multiple assignments, midterms, and finals.
- A percentage very close to a grade boundary (like 84.5% near the 85% cutoff) is worth double-checking against your institution's exact rounding policy, some round up, some don't.
- Grade points on a 4.0 scale are approximate here, your university's official conversion table is the authoritative source for GPA calculations that appear on transcripts.