Percentage Calculator

Free Online Percentage Calculator - Quick and Accurate Results

What is
% of

is what % of

is
% of what?

Solve a variety of percentage problems with our free online Percentage Calculator. This versatile tool allows you to:

  • Calculate percentages: Find the percentage of a number (e.g., what is 20% of 150?).
  • Determine the percentage one number is of another: (e.g., what percent of 80 is 20?).
  • Calculate the original number from a percentage: (e.g., 20 is 40% of what number?).
  • Increase or decrease a number by a percentage: (e.g., increase 50 by 10%).
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