Free Percentage Calculator – Percent Of, Increase & Decrease

Free Percentage Calculator — Percent Of, Increase & Decrease

Need to find X percent of a number, figure out what percent one value is of another, or work out a percent increase or decrease? This free percentage calculator handles all three — type the numbers and get the answer instantly.

What is X% of Y?

This calculator runs entirely in your browser. Your numbers never leave your device.

Popular percentage calculations

  • What is 20% of 150 (tip, discount, tax)
  • 45 is what percent of 200
  • Percent increase from 80 to 120, or percent decrease from 120 to 80

More free tools are on the way — suggest a calculator you'd like to see next.

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