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Number Base Converter

Jump between binary, octal, decimal, hexadecimal, and any other base from 2–36. Format with prefixes, grouping, and uppercase output instantly.

Base 2–36 Live Preview Copy & CSV Export

Convert a Value

Value

From base

To base

Awaiting input. Supports negative values and prefixes like 0x, 0o, 0b.

Options & Actions

Auto-update as you type Show conversion breakdown Show all standard bases Uppercase alphabetic digits Include base prefixes (0x, 0o, 0b) Group digits for readability

Conversion Result

Enter a number to convert

Formula details will appear here when available.

Base	Label	Prefix	Representation
Full base equivalence table appears here after conversion.

Quick Stats

Input digits –

Output digits –

Bit length –

Byte length –

Awaiting input.

Base Conversion Tips

Use decimal (base 10) as a sanity check before sharing values.
Group binary digits in nibbles (4 bits) to read hexadecimal faster.
Include prefixes like 0x, 0o, and 0b to remove ambiguity in documentation.
Disable auto-update for especially long inputs to improve editing focus.