Student Tools

Percentage Calculator

Find a percentage of a number or work out what percentage one value represents of another. Results update as you type, with the formula shown alongside your answer.

Percentage CalculatorOn-device processing

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How to use it

  1. 01Choose the type of percentage calculation.
  2. 02Enter your two numbers.
  3. 03Read the answer and check the formula.

Useful details

For example, 15% of 200 is 30. To find marks as a percentage, divide obtained marks by total marks and multiply by 100. A denominator of zero does not have a defined percentage.

Questions about this tool

Can I calculate my marks percentage?

Yes. Choose “A is what % of B”, enter your obtained marks as A and your total marks as B.

Can I use decimals or negative values?

Yes. The calculator accepts finite decimal and negative values. Division by zero is rejected.

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