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Binary, decimal & hexadecimal converter

Convert integers between binary, octal, decimal and hexadecimal, including very large and negative values.

AvailableIn your browserInput: Text

How to use: Binary, decimal & hexadecimal converter

  1. Type a number.
  2. Say which base it is in (binary, octal, decimal or hexadecimal).
  3. Copy its value in the other bases.

What it accepts and what you get

Input
Integers, including very large ones.
Output
The number in binary, octal, decimal and hexadecimal.
Where your data is processed
Your data is processed in your browser and is not sent to our servers.

Limitations and notes

  • Exact arithmetic (BigInt) is used, so large numbers keep their precision.
  • Integers only: fractions are not converted.

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