Number Base Converter
Convert integers between bases 2–36, keep prefixes, group digits for readability, and copy quick references for binary, octal, decimal, and hexadecimal all at once.
Supports optional prefixes like 0x, 0b, and underscore separators for readability. Negative numbers are welcome. Fractional values will be supported soon.
Uppercase digits
Helps when working with hexadecimal or bases above 10.
Group digits every
Improves legibility for large numbers.
Value in base 10
10
Original base 2
Decimal
10
Base 10 representation
Bit length
4 bits
Length of the binary representation
Sign
Non-negative
Conversions always preserve the sign
Quick conversions
Handy references in popular bases. Click any line to copy the value instantly.