Marks Percentage Calculator
Turn raw marks into a percentage, a grade, and a plan. The Single exam tab gives the percentage, grade, and how many more marks the next grade needs. The Multiple subjects tab aggregates up to five subjects (even with different maximum marks) with per-subject pass/fail. The Target marks tab tells you exactly what to score to hit a target percentage.
Subject 1
Subject 2
Subject 3
Subject 4
Subject 5 (optional)
Overall result is Pass only if every subject passes.
Grade bands follow the common A+ (90+) to F scale; boards and universities vary, so confirm your institution’s bands.
Quick Answer
Percentage = (marks obtained / total marks) x 100. For 72 out of 100, that is 72.00%, grade B+, with 8 more marks needed for grade A. For multiple subjects, sum all obtained marks first, then divide: 391 out of 450 = 86.89%, grade A. For a target of 90% on 600 marks with 492 so far, you need 48 more marks.
- Quick Answer
- Worked examples, checked against this exact tool
- The right way to combine subjects
- Grade bands
- Pass, fail, and the next grade
- What competing calculators miss
- CGPA, SGPA, and the percentage: converting between systems
- The 33% vs 40% pass-mark split
- Planning with the target tab: a study-time example
- Frequently asked questions
Worked examples, checked against this exact tool
Single exam: 72 out of 100 = 72.00%, grade B+; 8 more marks reach grade A (80). Multiple subjects: 85/100, 78/100, 88/100, 72/80, 68/70: totals 391 out of 450 = 86.89%, grade A, all subjects passed. Target marks: with 492 out of 600 (82%) and a 90% target, you need 540 marks: 48 more.
The right way to combine subjects
Add all obtained marks, add all maximum marks, then divide: (sum of obtained ÷ sum of maximum) × 100 [4]. Do not average the subject percentages: in the worked example, averaging gives 87.63%, which is wrong. Averaging treats a 70-mark subject as equal to a 100-mark subject; summing first weights each subject by its actual marks. When every subject has the same maximum, both methods agree.
Grade bands
Need that percentage in GPA terms for a college application? Our Stanford GPA calculator converts your marks to a 4.0-scale GPA. Planning a tougher course load next term? The AP class GPA calculator factors in weighted AP grades, so you can see whether the extra work actually lifts your GPA.
| Percentage | Grade | Standing |
|---|---|---|
| 90–100 | A+ | Excellent |
| 80–89 | A | Very good |
| 70–79 | B+ | Good |
| 60–69 | B | Above average |
| 50–59 | C+ | Average |
| 40–49 | C | Below average |
| 30–39 | D | Poor |
| Below 30 | F | Fail |
These bands follow the common scale [1] [2]; your board or university may use different cutoffs, so confirm locally.
Pass, fail, and the next grade
Most boards set the pass mark at 33-40% per subject, and the overall result is a pass only if every subject passes: one failed subject fails the result even at a high aggregate. The single-exam tab also computes the climb to the next grade: it finds the next threshold above your percentage and the exact marks needed, so “8 more for an A” becomes a concrete target.
What competing calculators miss
Rival pages split the job: single-percentage tools with no subjects, multi-subject tools with no target mode, and articles explaining the sum-then-divide rule with no tool at all. This page runs all three modes in one tool, enforces the correct aggregation method, adds per-subject pass/fail and the next-grade climb that no competitor computes.
CGPA, SGPA, and the percentage: converting between systems
Percentage, CGPA, and SGPA all describe the same performance in different units. The conversion is always a multiplication by your board’s factor, and the factor is not universal.
CBSE’s official conversion is percentage = CGPA × 9.5: a CGPA of 8.6 becomes 81.7%. The 9.5 comes from the board’s data: students in the top A1 band averaged about 95 marks, and 95 ÷ 10 = 9.5 [6]. Universities publish their own formulas, and they differ: VTU uses (CGPA − 0.75) × 10, Anna University uses CGPA × 10. Using the wrong institution’s formula is the most common conversion mistake, so check your university’s regulations before you convert.
Converting the other way, percentage back to CGPA, is just division by the same factor: 87.4% ÷ 9.5 = 9.2 CGPA under the CBSE system. This direction matters whenever a cutoff is published as a CGPA and your marksheet shows a percentage. The rounding rule is the board’s, not yours: CBSE reports CGPA to one decimal place, so convert first, then round to the board’s precision, not before.
SGPA and CGPA differ in scope, not scale. SGPA is the credit-weighted average for one semester; CGPA is the cumulative average across all semesters completed. Both sit on the same 10-point scale, which is why the same conversion factor applies to either.
The 33% vs 40% pass-mark split
India’s boards do not agree on passing. CBSE sets the pass mark at 33% per subject for Classes 10 and 12, while many state boards and most universities demand 40%. The tool defaults to 40% because it is the stricter and more common university standard; if your board uses 33%, read the per-subject verdicts against your own cutoff.
Failing one subject is rarely the end of the road. Most boards run compartment or supplementary exams that let you reappear in the failed subject without repeating the year, and the overall result updates once you clear it. The aggregate percentage still uses every subject’s marks, so a compartment pass repairs the result but not the average.
Planning with the target tab: a study-time example
The target tab turns a percentage goal into a marks quota you can split across the exams still to come. Take the worked example: 492 marks banked out of 600, targeting 90%, leaves 48 marks to find.
If three 100-mark papers remain, that is 16 marks per paper on average: a concrete per-paper target instead of an abstract percentage. Weight your remaining study time by marks at stake: an extra hour on the paper with the most headroom beats an hour polishing a paper you have nearly maxed. The honest caveat is that the tool counts marks, not effort, so put the hours where the remaining marks actually live.
Frequently asked questions
(Marks obtained ÷ total marks) × 100. 72 out of 100 = 72%.
Sum all obtained marks, sum all maximum marks, then divide: 391 ÷ 450 × 100 = 86.89%. Do not average the subject percentages.
It gives equal weight to subjects with different maximums. A 70-mark subject should count less than a 100-mark one; summing first handles that automatically.
B+ (Good) on the common scale used here. Bands vary by board and university.
Next threshold × total ÷ 100, minus what you have, rounded up: at 72/100, grade A (80) needs 8 more marks.
Target marks = maximum × target% ÷ 100; subtract your current marks. For 90% of 600 with 492 so far: 540 − 492 = 48 more.
Usually 33-40% per subject (default 40% in the tool); the overall result passes only if every subject passes.
Yes: enter each subject’s obtained and maximum marks in the Multiple subjects tab; the standard 500- or 600-mark totals work directly.
That is exactly what the Multiple subjects tab handles: enter each subject’s own maximum and the tool weights them correctly.
No. The A+ to F bands here are the common scale; your board’s bands may differ, so confirm locally.
Multiply by your board’s factor. CBSE uses CGPA × 9.5, so 8.6 becomes 81.7%. Universities set their own: VTU uses (CGPA − 0.75) × 10. [6]
SGPA is the credit-weighted average for a single semester; CGPA is the cumulative average across all semesters so far. Same 10-point scale, different scope.
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References
[1] College Board. “About AP Scores” College Board on AP scores (Accessed Oct 16, 2026).
[2] Cambridge International. “Cambridge IGCSE programme” Cambridge IGCSE programme (Accessed Oct 16, 2026).
[3] Khan Academy. “Converting decimals to percents” Khan Academy on percents (Accessed Oct 16, 2026).
[4] OpenStax (Rice University). “Prealgebra 2e: Understand Percent” OpenStax on percent (Accessed Oct 16, 2026).
[5] UCAS. “UCAS Tariff points and entry requirements” UCAS tariff points (Accessed Oct 16, 2026).
[6] StudyToolset. “CGPA to Percentage: Convert Instantly.” StudyToolset: CGPA to percentage (Accessed Oct 17, 2026).