📖 Read the full Percentage Calculator guide — how it works, examples & FAQ →
How to use this tool
- Enter X.
- Enter Y.
- Pick the mode and read the result.
Example
What is 15% of 80? → 12
Why it's private
This tool runs entirely in your browser using JavaScript. Whatever you paste is processed on your own device — it is never uploaded to a server, logged, or stored. Built by Calabi, which also strips AI metadata and C2PA signals from images and video.