Yes, decimal numbers are supported in all modes.
Percentage Calculator
Calculate X% of Y, what percent X is of Y, and percentage increase/decrease.
About this tool
Percentage Calculator helps you calculate x% of y, what percent x is of y, and percentage increase/decrease. It runs directly in your browser for speed and privacy with no sign-up required. Use the steps below to get results quickly, then copy or download the output and continue with related tools when needed. Try next: Discount Calculator • Age Calculator.
How to use
- Select the percentage mode that matches your problem.
- Enter both numeric values in the input fields.
- Click Calculate to get the exact result.
- Use Try example for quick sample values and Copy result to save output.
Related tools
Try next: Discount Calculator • Age Calculator • Time Duration Calculator.
Frequently asked questions
Some formulas require a non-zero base value for valid percentage output.
Results are formatted for readability while keeping practical precision.