Free · No signup · Nothing stored

Calculate Your Percentage

One precise tool for three real needs: subject-wise breakdown, instant marks-to-percentage, and CGPA conversion. Built for board exams, college semesters and job applications.

Results are estimates — your board or university may use different rounding or conversion rules. Always verify with your official mark sheet for formal submissions.

3 calculation modesSubject-wise, simple & CGPA
Instant grade bandA+ through F assigned automatically
Private by designAll math happens on-device

Mark Percentage Calculator

Fill optional student details, pick a mode, enter your marks and calculate. Everything runs in your browser.

Student information (optional)
Calculation mode
Subject-wise. Enter each subject individually for a detailed breakdown of your aggregate percentage.
Simple calculation. Use when you already know your total obtained marks and the grand total — just two numbers.
CGPA to %. Convert your CGPA to percentage using your institution's multiplier. CBSE typically uses 9.5 — check yours.

What you get instantly

Everything below is worked out from your marks.

Overall percentage

To two decimal places, across every subject or total you enter.

Grade band

Automatic A+ through F assignment based on common academic scales.

Export results

Download a text report or share directly via WhatsApp.

Private by design. All math runs in your browser. Nothing is sent to any server.
Built and maintained by Bhavin Sheth
Last modified: Oct 13, 2026
Three modes

Modes, formulas & worked examples

Each mode of this calculator, the formula it uses, and a one-click example you can load straight into the tool.

Subject-wise

Per-subject entry with aggregate

User case

A 10th grader enters marks for each of their five board subjects and wants both an aggregate percentage and a subject-by-subject breakdown.

How it's calculated

Percentage = (Σ Obtained ÷ Σ Max) × 100
388 obtained / 450 max → 86.22%

Who uses it

  • Board exam students (10th, 12th)
  • Semester students with varied subject marks

Applications

Board results, college admission cutoffs, semester performance checks.

Simple calc

Two numbers, instant result

User case

A student already has their aggregate from a mark sheet — 450 out of 500 — and just needs the percentage quickly for a form.

How it's calculated

Percentage = (Obtained ÷ Total) × 100
450 ÷ 500 × 100 → 90.00%

Who uses it

  • Students with printed aggregates
  • Job applicants filling percentage fields

Applications

Resume entries, admission forms, quick eligibility checks.

CGPA to %

Convert grade point to percentage

User case

A graduate with a 10-point CGPA of 8.4 needs the equivalent percentage for a government job application that asks only for marks out of 100.

How it's calculated

Percentage = CGPA × Multiplier
8.4 × 9.5 → 79.80%

Who uses it

  • CBSE / ICSE students with CGPA transcripts
  • Engineering graduates filling eligibility forms

Applications

Government job applications, visa forms, graduate admissions.

Grade bands

What your percentage grade means

The common academic scale this calculator uses to assign a grade to your result.

Percentage rangeGradeTypical meaning
90% and aboveA+Outstanding — top academic tier
80% – 89%AExcellent — distinction-level performance
70% – 79%B+Very good — above average
60% – 69%BGood — solid performance
50% – 59%CAverage — meets expectations
40% – 49%DPass — minimum passing threshold
Below 40%FFail — below the passing threshold
Honest by design

Clear, simple, transparent

What this percentage calculator does, and what it doesn't — no fine print.

What this calculator does

  • Calculates percentage from raw marks in three modes
  • Converts CGPA to percentage with a configurable multiplier
  • Shows a full subject breakdown and visual performance bar
  • Exports results as a text report or via WhatsApp
  • Runs entirely in your browser — no data leaves the page

What this calculator does not do

  • Does not apply weighted credits — use the GPA calculator for weighted subjects
  • Does not know your institution's official CGPA multiplier
  • Does not issue an official mark sheet or certified document
  • Does not replace your academic office's official records
Accuracy tips

Get the most accurate result

Common pitfalls that can skew your percentage — and how to avoid them.

Match max marks to the exam

If your physics paper is out of 70 and your math is out of 100, don't leave every "Max marks" at 100 — enter the actual paper total for each subject.

Include every subject

Missing even one low-scoring subject will inflate your aggregate. Enter every subject that appears on your mark sheet for a true percentage.

Double-check the CGPA multiplier

The 9.5 multiplier applies mainly to CBSE. Many universities use 10, and a few use entirely different formulas — confirm with your institution first.

Watch the pass threshold

Some boards pass at 33%, others at 40%. This tool marks anything below 40% as Fail on its scale — always check your board’s official pass mark.

Use decimals when needed

If a subject score is 85.5 out of 100, enter the decimal. The calculator preserves two decimal places, so you won't lose precision on fractional marks.

Verify against the official sheet

For job applications or admissions, always cross-check your calculated percentage against the official mark sheet before submitting.

Frequently asked questions

Quick answers about calculating percentage from marks and using this tool.

Understanding percentage

Divide your obtained marks by the maximum possible marks, then multiply by 100. For example, 400 out of 500: (400 ÷ 500) × 100 = 80%.
The most common formula, especially for CBSE and ICSE, is CGPA × 9.5. Some universities use CGPA × 10. Always check your specific institution's official conversion formula.
It uses a common academic scale: 90%+ is A+ (Outstanding), 80–89% is A (Excellent), 70–79% is B+ (Very Good), 60–69% is B (Good), 50–59% is C (Average), 40–49% is D (Pass), and below 40% is F (Fail).
Yes, you can enter marks with decimals (for example 85.5). The result is also calculated to two decimal places for precision.

Using & troubleshooting

Subject-wise mode lets you enter each subject individually so you can see a detailed breakdown. Simple mode is for when you already know your total obtained marks and the grand total — just two numbers.
This tool calculates simple aggregate percentage. If your subjects have different credits or weights, use the GPA calculator instead, or manually calculate the total weighted marks before entering them.
No. Every calculation runs entirely in your browser. Nothing you enter is ever sent to or saved on a server.
Yes. Click the Download button after calculating to save a text file with your student details, overall percentage, grade, and full subject-by-subject breakdown.

Ready to calculate your percentage?

Try another calculation or explore more academic tools.