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📊 Percentage Calculator

Calculate percentages: what is X% of Y, X is what % of Y, and percentage change. Free online calculator.

Enter values and click Calculate.

How to Use

  1. Use the "What is X% of Y" tab to find a percentage of a number.
  2. Use the "X is what % of Y" tab to find the percentage ratio.
  3. Use the "Percentage Change" tab to calculate increase or decrease.
  4. Enter values and click the calculate button for instant results.

Features

  • ✓ 100% free — no hidden charges
  • ✓ No login or signup required
  • ✓ Works on mobile, tablet and desktop
  • ✓ Fast — calculates instantly in your browser
  • ✓ Private — your data never leaves your device
  • ✓ Three calculation modes in one tool
percentage calculator percent calculator percentage change free online no login

Frequently Asked Questions

Is Percentage Calculator free to use?

Yes, completely free. No signup, no subscription, no limits.

What types of percentage calculations are supported?

What is X% of Y, X is what % of Y, and percentage change.

Is my data safe?

Yes. All processing happens in your browser. Nothing is uploaded to any server.

Does it work on mobile?

Yes. deeptools.io is fully mobile responsive and works on all modern devices.

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