Percentage Calculator - Free Online Tool | PivaBox

Calculate percentages, proportions, and percentage changes with multiple modes

How to Use Percentage Calculator

  1. Choose a calculation mode: What is X% of Y, X is what % of Y, or Percentage Change
  2. Enter the values in the corresponding input fields
  3. The result appears instantly with the formula shown for reference

Frequently Asked Questions

Is Percentage Calculator free?

Yes, PivaBox Percentage Calculator is completely free. All calculations are done in your browser.

Are my numbers uploaded to a server?

No. All percentage calculations are done locally in your browser. Your data never leaves your device.

What calculation modes are available?

Three modes are available: (1) What is X% of Y — calculates the percentage value (e.g., 15% of 200 = 30). (2) X is what % of Y — calculates what percentage one number is of another (e.g., 30 is 15% of 200). (3) Percentage Change — calculates the percentage increase or decrease from one value to another.