Text & Dev Tools

Number Base Converter

Convert between binary, octal, decimal, hex, and any base from 2 to 36. All fields update simultaneously.

Examples:

Decimal base 10

Binary base 2 0b

Octal base 8 0o

Hexadecimal base 16 0x

UPPER

Bit Visualizer

Base

Bits Needed

—

Power of 2?

—

Signed (8-bit)

—

ASCII Char

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Quick Reference

Power	Decimal	Hex	Binary
2⁰	1	1	1
2⁴	16	10	10000
2⁷	128	80	10000000
2⁸	256	100	1 00000000
2¹⁰	1024	400	100 00000000
2¹⁶	65536	10000	1 00000000 00000000
2³²	4294967296	1 00000000	(33 bits)

Name	Dec	Hex	Binary
Max signed byte	127	7F	01111111
Max unsigned byte	255	FF	11111111
Max unsigned 16-bit	65535	FFFF	16 × 1
Unix permission rwx	7	7	111

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