％ Online Percentage Calculator
Calculate percentage of a number, percent increase or decrease and percent difference instantly. Free percentage calculator for tips and discounts.
Quick Answers
What does Percentage Calculator do?
This tool calculates a percentage (X% of Y), the percentage change between two numbers, or the percentage difference. Useful for discounts, tips, price increases, school statistics and business margins.
How do I use Percentage Calculator?
Pick the calculation type (percent of, change, difference) and enter your two numbers. The result is shown instantly. You can switch between modes without reloading.
Who is Percentage Calculator for?
Students for math homework, salespeople calculating discounts, individuals checking a tip or balance, and professionals computing margins and budget changes.
Is it free and private?
Yes, free and no signup. Calculations happen in your browser, no number is sent to or stored on our servers.