Percentage Calculator
Calculate percentages online, free: what is X% of Y, X is what percent of Y, and percentage increase or decrease.
How to use Percentage Calculator
- Enter the numbers for the calculation you need.
- Read the answer, it updates instantly as you type.
About Percentage Calculator
Percentage Calculator is a free Becoderr tool. It needs no sign-up, runs fast and privately, and works right in your browser for most tasks. For the few server-based tools, your files are processed in memory and discarded immediately after the operation.
Frequently asked questions
How do I find X% of a number?
Enter the percentage and the value in the first box, e.g. 25% of 200 is 50.
How is percentage change calculated?
((new − old) ÷ old) × 100. A result above 0 is an increase, below 0 a decrease.
Is this tool free to use?
Yes. Every tool on Becoderr is completely free with no sign-up required. Signed-in users get higher file-size limits.
Are my files safe?
Yes. Browser-based tools process files entirely on your device; nothing is uploaded. Server-based tools process files in memory and discard them immediately after the operation.
Is there a file size limit?
Server-based tools accept up to 5 MB for anonymous users and 50 MB when signed in. Browser-based tools are limited only by your device.