Free Online Percentage Calculator
Calculate percentages, find percentage changes, and solve complex percentage problems instantly.
Initializing Module
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How to use it
Select a Mode
Choose the type of calculation you need (e.g., 'What is X% of Y?' or 'Percentage Change').
Enter Your Numbers
Type your values into the clearly labeled input fields.
Get Instant Results
The answer is calculated automatically as you type, with the exact mathematical formula shown for transparency.
FAQ
?How do you calculate a percentage?
To find the percentage of a number, multiply the number by the percentage fraction (e.g., to find 20% of 50, calculate 50 * 0.20 = 10).
?What is percentage change?
Percentage change shows how much a value has grown or shrunk compared to its original amount. It's calculated as: ((New Value - Old Value) / Old Value) * 100.
?Can this calculate discounts or tax?
Yes! Use the 'Percentage Increase/Decrease' mode to easily calculate final prices after taxes (increase) or discounts (decrease).
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Your data never leaves your browser
Our free Percentage Calculator takes the headache out of everyday math. Whether you need to calculate a discount, figure out a tip, determine tax amounts, or find the percentage change between two numbers, this tool gives you instant, accurate results. Features multiple calculation modes to solve any percentage-related problem.