Developer

Number Base Converter

Enter a number in any base and instantly see it in binary, octal, decimal and hexadecimal. Input is validated per base and arbitrary-precision via BigInt, so even very large integers convert accurately.

Examples

Input

255 (Dec)

Output

Bin 11111111 · Oct 377 · Hex FF

How it works

Pick the base you are typing in and the tool shows the same number in binary, octal, decimal and hexadecimal. A leading 0x, 0b or 0o is ignored, and each digit is checked against the base you chose, so an 8 in an octal value is reported instead of silently misread.

The same value in four bases
Decimal	Binary	Octal	Hex
10	1010	12	A
255	11111111	377	FF
1024	10000000000	2000	400

Conversion uses arbitrary-precision integers, so a 200-digit number converts exactly. Only whole, non-negative numbers are supported: no minus sign and no fractional part.

How to use Number Base Converter

Choose the base

Select whether your input is binary, octal, decimal or hex.

Type the value

Enter the number; invalid digits for the chosen base are flagged.

Copy any result

Each output row has a Copy button for the converted value.

Why use this tool

Converts to all four bases at once

Validates digits against the selected base

Handles huge integers via BigInt — no precision loss

Copy any representation with one click

Frequently asked questions

Can it handle very large numbers?

Yes. Conversions use BigInt, so large integers convert exactly without floating-point rounding.

Does it accept prefixes like 0x?

Yes. Leading 0x, 0b or 0o prefixes are stripped automatically before conversion.

Found a bug or have an idea?

ToolOrbit is actively developed — feedback directly shapes what gets built next.

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