MATH & NUMBERS
Number Base Converter
Convert between binary, octal, decimal and hexadecimal.
100% free
No sign-up
Private — runs in your browser
Instant results
KEY TAKEAWAYS
- Convert between binary, octal, decimal and hexadecimal.
- Free to use — no sign-up, no account and no usage limits.
- Runs entirely in your browser, so the numbers you enter stay private.
- Works on desktop and mobile with instant, accurate results.
Last updated: June 2026
About the Number Base Converter
Enter a value in any base and instantly see its binary, octal, decimal and hexadecimal forms.
Frequently asked questions
Does it handle hex letters?
Yes — enter hex values like FF or 1A3 and choose base 16 as the input.
Free online tool from ConvertFleet. Calculations run entirely in your browser — nothing you type is sent anywhere. Results are estimates for general guidance only.