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Percentage Calculator

Calculate percentages, percentage increases/decreases, and percentage differences quickly and easily.

No uploads • Client-side only • Your data stays on your device

Percentage Calculator workspace

What is X% of Y?

of
Result
20.00
20% of 100 = 20.00

Common Use Cases:

  • Basic: Calculate tips, discounts, tax amounts
  • Increase: Price increases, salary raises, growth projections
  • Decrease: Sale discounts, price reductions, depreciation
  • Difference: Compare sales periods, analyze trends, track changes

Your Privacy Guaranteed

All processing happens directly in your browser using JavaScript. Your files, passwords, and data never leave your device and are never uploaded to our servers. We cannot see, store, or access anything you process with this tool.

No account required • No tracking • No data collection • Works offline after initial load