Hex Calculator
Add, subtract, multiply and divide hexadecimal numbers online, with decimal results shown alongside. Free, fast and private.
Your result will appear here.
How to use Hex Calculator
- Enter two hexadecimal numbers using digits 0–9 and letters A–F.
- Choose add, subtract, multiply or divide.
- Click Calculate to see the hex and decimal result.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
Is this tool free?
Yes, it is 100% free with no sign-up. Your data stays in your browser.
Do I need to install anything?
No. It works in any modern browser on phone, tablet or computer.
Is my data uploaded?
No. This tool runs entirely in your browser and your input is never uploaded to a server.
Is the input case-sensitive?
No. Lowercase and uppercase hex letters (a–f or A–F) both work, and the result is shown in uppercase.