Percentage calculator

Instantly calculate increase, decrease, or discount on any amount with optional currency. Free in your browser with no signup.

Final value
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Change amount
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Original value
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How to use the percentage calculator

  1. Choose operation type: increase, decrease, or discount.
  2. Enter the original value and percentage rate; pick a currency if needed.
  3. Click “Result” to see the final value and change amount.

Percentage calculator — frequently asked questions

Yes. The tool is completely free and runs in your browser with no account required.

You can calculate increase, decrease, or discount on any amount.

Yes. Choose an optional currency (SAR, AED, USD, EUR, etc.) or leave it blank.

Use VAT 15%, 10% off, or 15% tip buttons to fill the rate quickly.

Yes. The tool is responsive and works on phones, tablets, and desktop browsers.