Percentage Calculator
Basic %
What is X% of Y?
% of Total
X is what % of Y?
% Change
Increase/decrease from X to Y
Add %
Add X% to Y amount
Subtract %
Remove X% from Y
% Difference
Diff between two values
Reverse %
Find original value
Tip Calculator
Split bill with tip
Chain Calculator
AdvancedApply multiple percentage operations in sequence.
Percentage Table
Quick Presets
Recent History
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How to use Percentage Calculator
Choose the type of calculation you need (e.g., 'What is X% of Y?' or 'Percentage Increase/Decrease').
Enter your numbers in the provided fields.
The result is calculated instantly as you type.
Why use our Percentage Calculator?
Multiple Modes
Features calculators for basic percentages, percentage change, and finding the whole from a part.
Instant Results
No need to click a 'calculate' button. The math happens instantly in real-time as you enter the numbers.
100% Secure & Private
All processing happens in your browser. Your files are never uploaded to our servers, guaranteeing absolute privacy and security.
Lightning Fast
Because everything runs locally on your device, processing is instant. No waiting in queues or dealing with slow uploads.
Frequently Asked Questions
How do I calculate a discount?
Use the 'Percentage Decrease' mode. Enter the original price, then enter the discount amount, and it will instantly show you the final price.
Is this tool useful for exams or finance?
Absolutely. It's perfect for quickly verifying test score percentages, calculating sales tax, finding profit margins, or splitting bills.
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Related Guides & Strategies
Learn how to get the most out of this tool.
How to Calculate Percentages in Math & Finance
Quick formulas to calculate percentage increase, decrease, or base ratios.
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