Free Percentage Calculator Online
Solve common percentage problems: find X% of Y, percent increase/decrease, and what percent X is of Y.
Quick Navigation
Jump to specific sections of the Percentage Calculator guide.
Key Features
Powerful capabilities of our percentage calculator.
Multi-Mode
Three separate calculators for different queries.
Percent of Value
E.g., "What is 20% of 150?".
Percent Change
Calculate growth or reduction between two numbers.
Part of Whole
E.g., "25 is what percent of 100?".
Instant Results
No need to press enter.
How to use Percentage Calculator
Pick Mode
Tab between the three calculation types.
Enter Numbers
Input your values.
See Answer
The result appears instantly.
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Frequently Asked Questions about Percentage Calculator
Is it accurate?
Yes, it uses standard floating-point math.
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