Percentage Calculator

Use our Percentage Calculator for fast and accurate percentage calculations, including discounts, tips, and grade percentages. Get instant results for percentage increases and decreases.


Calculate percentages, find what percent one number is of another, and compute percentage changes between values.

Finding a Percentage of a Number
%
of
Finding What Percent One Number is of Another
is what percent of
%
Calculating Percentage Change
to
%
What is a percentage?

In mathematics, a percentage is a number or ratio that represents a fraction of 100. It is denoted by the symbol "%". For example, 35% is equivalent to the decimal 0.35 or the fraction 35/100.

Percentage Formulas
Basic Formula

P × V1 = V2, where P is the percentage (in decimal form), V1 is the value to calculate the percentage of, and V2 is the result.

Calculator Tips
  • Use tab to move between fields
  • Enter numbers with or without decimals
  • Results are rounded to 2 decimal places
  • Percentage change can be positive or negative
  • Press enter to calculate quickly