How do I calculate X% of Y?

Multiply Y by X and divide by 100. For example, 15% of 200 = (200 × 15) / 100 = 30.

20% of 80 is 16. Calculation: 80 × 20 / 100 = 16.

What is 1% of any number?

1% of any number is simply that number divided by 100. For example, 1% of 350 = 3.50.

What is X% of Y?

Enter a percentage and a number to find the result instantly. For example: what is 15% of 200? The answer is 30. The formula is always shown so you can verify the calculation.

Percentage (%)Of number

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How it works

All calculations use standard percentage arithmetic: (X / 100) × Y for “X% of Y”, (X / Y) × 100 for “X is what % of Y”, and ((new − original) / |original|) × 100 for percentage change. The formula used is always shown below the result.

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Related operations

For working out fractions of a value, try the fraction calculator. To split a bill including a tip, use the tip calculator. For modelling savings growth over time, see the compound interest calculator.

Frequently asked questions

How do I calculate X% of Y?: Multiply Y by X and divide by 100. For example, 15% of 200 = (200 × 15) / 100 = 30.
What is 20% of 80?: 20% of 80 is 16. Calculation: 80 × 20 / 100 = 16.
What is 1% of any number?: 1% of any number is simply that number divided by 100. For example, 1% of 350 = 3.50.

What is X% of Y?

How it works

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Related operations

Frequently asked questions

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