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Percentage Calculator

Calculate percentages, find what percent one number is of another, and calculate percentage change

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

Calculation Mode

Percentage (X%)

Total Value (Y)

Common Use Cases

Calculate 20% of 150

Calculate 15% tip on $80

$12

Calculate 7% tax on $500

$35

What is X% of Y?

To find X% of Y, divide X by 100 to convert it to a decimal, then multiply by Y.

Formula: (X ÷ 100) × Y

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.