Percentage Calculator Online Free
Three percentage modes: find a percentage of a number, find what percentage one number is of another, or calculate percentage change.
How This Percentage Calculator Online Free Works
Percentage calculations come up constantly in everyday life. This percentage calculator online free covers the three most common scenarios.
Mode 1: What is X% of Y? Mode 2: X is what percentage of Y? Mode 3: What is the percentage change from X to Y? Switch between modes with one click.
Results show the formula used so you can understand the math. No account needed.
What this tool does
How to use it
Choose a mode
Select the type of percentage calculation you need.
Enter the numbers
Type the values in the input fields.
Read the result
The answer and formula appear instantly.
Questions About Percentage Calculator Online Free
Yes. Completely free with no signup, no limit and no data sent anywhere.
Select Mode 1 (What is X% of Y). Enter 20 as the percentage and 500 as the number. Result: 100.
Select Mode 2 (X is what % of Y). Enter 75 and 300. Result: 25%.
Select Mode 3 (Percentage Change). Enter 80 as the original and 100 as the new value. Result: 25% increase.
Percentage change = ((new value minus original value) divided by original value) multiplied by 100.