Percentage Calculator
Calculate percentages three ways: find X% of Y, what percent X is of Y, or the percentage change between two values.
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Frequently Asked Questions
Is the Percentage Calculator free?
Yes — the Percentage Calculator is completely free to use with no account or sign-up required.
Is my data private?
Absolutely. This tool runs entirely in your browser. Your text and data are never sent to any server.
Does it work on mobile?
Yes, all tools are designed to be mobile-friendly and responsive.