Percentage Calculator – Free Online Tool

Our free online Percentage Calculator, quickly calculate percentages and percentage changes.  
Perfect for finance, school, business, and everyday use. Works on both desktop and mobile.

Percentage Calculator

Calculate percentages, increases, decreases, and percentage differences instantly.

Example: 150
Example: 20
Quick percentages
Example: 100
Results
Enter values to see results.
Percentage Examples
Enter values above to generate examples.

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How to Use the Percentage Calculator

Our calculator automatically calculates several percentage results at once.
Simply enter your numbers and the results update instantly.

  1. Percentage Of
    Enter a number and a percentage to calculate the percentage value.
    Example: 20% of 150 = 30.
  2. Percentage Increase
    Shows the new value when a number increases by a given percentage.
    Example: 150 increased by 20% = 180.
  3. Percentage Decrease
    Shows the reduced value when a number decreases by a given percentage.
    Example: 150 decreased by 20% = 120.
  4. Percentage Difference
    Compare two numbers to see the percentage increase or decrease between them.
    Example: Comparing 80 and 100 = 25% increase.

Tip: You can also use the quick percentage buttons for common values such as 10%, 20%, or 50%.

How do I calculate a percentage of a number?

A: Enter the base value and the percentage. The calculator instantly shows the result (e.g., 20% of 150 = 30).

A percentage increase shows how much a value grows, while a percentage decrease
shows how much it reduces compared to the original value.

A: Enter both numbers, and the calculator shows the relative difference as a percentage (e.g., 80 compared to 100 = 25% increase).

Yes, it’s 100% free, with no signup or subscription required.

Yes. The calculator works on both desktop and mobile devices and updates results automatically as you type.

About the Percentage Calculator

The Eqsy Percentage Calculator helps you quickly calculate percentages, percentage increases, decreases, and differences in seconds.Whether you need to calculate a discount, compare two numbers, or solve a percentage problem for school or work, this tool provides fast and accurate results.Perfect for:
  • Discounts and price changes
  • Business and data analysis
  • School math and homework
  • Everyday calculations
The calculator works instantly in your browser with no downloads or sign-up required.

Common Percentage Examples

Here are some simple examples of percentage calculations:
  • 20% of 150 = 30
  • 15% of 200 = 30
  • 10% increase from 100 = 110
  • 25% decrease from 80 = 60
These examples show how percentages can be used to quickly compare values or calculate changes.

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