Percentage Calculator

Calculate percentages quickly and accurately.

% of
is % of
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How to use

  • What is X% of Y?
    Enter a percentage and a value to find out what that percentage of the value is. Example: 20% of 500 = 100.
  • What % is X of Y?
    Enter two numbers to find what percentage one is of the other. Example: 50 is 25% of 200.
  • Percentage change
    Find the percentage increase or decrease between two values. Example: from 100 to 150 is a 50% increase.

What is a Percentage?

A percentage is a way of expressing a number as a fraction of 100. The word comes from the Latin "per centum," meaning "by the hundred." Percentages are used everywhere in daily life — from calculating discounts while shopping, to understanding interest rates on loans, to reading statistics in the news.

How to Calculate a Percentage

To find what percentage one number is of another, divide the part by the whole and multiply by 100. For example, if you scored 45 out of 60 on a test, your percentage score is (45 ÷ 60) × 100 = 75%.

Frequently Asked Questions

How do I calculate 20% of a number?

Multiply the number by 0.20. For example, 20% of 250 = 250 × 0.20 = 50.

How do I find percentage increase?

Subtract the original value from the new value, divide by the original value, then multiply by 100. Example: from 80 to 100 = ((100 - 80) ÷ 80) × 100 = 25% increase.

What is the difference between percentage and percentile?

A percentage is a ratio out of 100. A percentile is a value below which a certain percentage of data falls — commonly used in test scores and statistics.

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