Percentage Calculator

Find a percentage of a number, or work out what one number is as a percentage of another.

Percentage calculator

Percentage (%)

Of this number

Number X

Number Y

Use the first box to find a percentage of a number (for example, 15% of 200). Use the second to see what one number is as a percentage of another.

Percentage of a number = (P ÷ 100) × N X as a percentage of Y = (X ÷ Y) × 100%

Example: 15% of 200 = (15 ÷ 100) × 200 = 30.

Example: 30 is what percent of 120? 30 ÷ 120 × 100 = 25%.

What is the formula for percentage of a number?

Multiply the number by the percentage divided by 100: N × (P ÷ 100).

How do I find what percent X is of Y?

Divide X by Y and multiply by 100: (X ÷ Y) × 100%.

What is 10% of 50?

10 ÷ 100 × 50 = 5.