Convertisseur de bases numériques — Binaire, hex, décimal
Convertissez des nombres entre binaire, octal, décimal et hexadécimal.
Convert From
Decimal (Base 10)
255
Binary (Base 2)
11111111
Octal (Base 8)
377
Hexadecimal (Base 16)
FF
💡 Number System Guide
- Decimal: Base 10, uses digits 0-9 (standard counting)
- Binary: Base 2, uses digits 0-1 (computer data)
- Octal: Base 8, uses digits 0-7 (file permissions)
- Hexadecimal: Base 16, uses 0-9 and A-F (colors, memory addresses)
Example: The decimal number 255 is 11111111 in binary, 377 in octal, and FF in hexadecimal.
Frequently Asked Questions about Number Base Converter
- Is Number Base Converter completely free to use?
- Yes, Number Base Converter is 100% free with no sign-up, no watermarks, and no usage limits.
- Are my uploaded files safe and private?
- Yes. Files are uploaded over HTTPS, processed securely on our servers, and permanently deleted immediately after your download. We never store, view, or share your files.
- What is the maximum file size?
- You can upload files up to 1 MB. For larger files, consider compressing or splitting them first.
- Is there a file size or length limit?
- For text-based conversions there is no practical limit. The tool handles data up to several hundred kilobytes without issues.
- Does Number Base Converter work on mobile and tablet?
- Yes, Number Base Converter is fully responsive and works in all modern browsers on desktop, tablet, and mobile.
Files are processed securely and permanently deleted after download. Never stored or shared.