Academic Calculators

Percentage Calculator

Part ÷ whole × 100; change uses (new − old) ÷ old × 100.

Percentage Calculator

Enter your details below. Required values are marked clearly.

Runs in your browser

How to use it

  1. Enter the values from your syllabus, gradebook, notes, or plan.
  2. Check that percentages and totals use the same scale.
  3. Select Calculate and read the note below your result.
  4. Adjust a value to compare a different scenario.

How the calculation works

18 correct answers out of 24 equals 75%.

Example

Tips for a more useful result

  • Use exact figures instead of rounded values when they are available.
  • Check your course handbook for institution-specific scales and rules.
  • Treat estimates as planning aids, especially when future scores are unknown.

Reviewed and updated September 2026.

Common questions

Does this save my information?

No. The calculation happens in your browser and the values are not stored.

Can I use the result for official decisions?

Use it as a planning estimate, then check your institution’s grading rules or assignment instructions.

What should I do if my result looks wrong?

Check every value, unit, and weight. Empty or zero totals can make a calculation impossible.

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