What is Number Base Converter?
Enter one number to see its binary, octal, decimal, and hexadecimal values at once, and convert between any bases from 2 to 36. Even very large numbers are handled exactly (BigInt).
How to use
- 1
Choose the input base and enter a number.
- 2
Check the result in every base.
- 3
Copy the value you need.
Use cases
Checking bit masks
Expand a hex flag into binary.
Working with color codes
Turn a hex color value into decimal.
FAQ
Is my data saved or sent anywhere?+
No. Everything is calculated in your browser and nothing is saved or sent.