Percentage Calculator
Niche ToolsCalculate percentages easily
Four percentage calculators with real-time results.
What is X% of Y?
X is what % of Y?
Percentage Change
Tip Calculator
About Percentage Calculator
Calculate percentages easily. Find what percent of a number, percentage change, and more with instant results.
Frequently Asked Questions
How do I calculate a percentage of a number?
Enter the percentage and the number into the first calculator mode. The tool multiplies the number by the percentage divided by 100. For example, 15% of 200 equals 30.
How is percentage change calculated?
Percentage change is computed as the difference between the new value and the old value, divided by the old value, multiplied by 100. A positive result indicates an increase and a negative result indicates a decrease.
Can I use the tip calculator to split a bill?
Yes. Enter the bill amount, select or type a tip percentage, and specify the number of people. The calculator shows the tip amount, total bill, and per-person share in real time.
Is my data safe?
Yes! All processing happens entirely in your browser. Your data is never sent to any server. No information is collected, stored, or transmitted.
What percentage formulas does this tool support?
The tool covers four common formulas: X% of Y, what percent X is of Y, percentage change between two values, and tip calculation with bill splitting. Results update instantly as you type.
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