Base 10 Decimal
Digits: 0–9 · Prefix: none · Negative: use − sign
Base 16 Hexadecimal
0x
Digits: 0–9, A–F · Prefix: 0x (optional)
Base 2 Binary
0b
Digits: 0–1 · Prefix: 0b (optional)
Base 8 Octal
0o
Digits: 0–7 · Prefix: 0o (optional)

Bit Representation

Enter a number above to see its bit representation

About Number Base Converter

Number Base Converter converts integers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) simultaneously. Working with different number bases is essential in low-level programming, networking, and computer science.

Use it to understand how a decimal integer looks in binary when debugging bitwise operations, to convert a memory address from hex to decimal, to look up ASCII values, or to work with IPv4 subnetting where octal sometimes appears. The two's complement and fixed-width (8/16/32/64-bit) views are useful when working with signed integers in C, assembly, or embedded systems.

All conversions run locally in your browser.

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