Percentage calculator

Calculate percentages: A% of B or what percentage A is of B.

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Overview

Percentage represents parts per hundred. This tool handles two common scenarios: A% of B and what percent A is of B.

Useful for discounts, adjustments, and KPI comparisons.

Example

10% de 200 = 20
20 representa 10% de 200

FAQ

What is this tool for?

It runs fully in your browser: useful to validate, format, or convert data in everyday development.

Are my inputs sent to a server?

Processing happens locally with JavaScript. We do not store what you paste into the text areas.

Can I use this for real production data?

Use at your own risk. For secrets (passwords, tokens), prefer controlled environments and your company policies. And always review the generated contents. Never trust blindly things you see on the internet.