Math & Education
Binary / Decimal / Hex Converter
Convert integers among binary, octal, decimal, and hexadecimal.
Your inputs
Adjust the values
Conversions use exact integer arithmetic and support values up to 256 digits, including negative numbers.
Decimal value
255
About this tool
A straightforward binary / decimal / hex converter
Convert integers among binary, octal, decimal, and hexadecimal. Exact arbitrary-size integer parsing converts the selected input base to base 2, 8, 10, and 16 representations.
BigInt arithmetic preserves exact values for inputs up to 256 digits. Inputs are processed in your browser, and changing a value updates the result immediately.
How it works
Use the Binary / Decimal / Hex Converter in three steps
- 1Enter your values
Enter an integer and identify whether it is binary, octal, decimal, or hexadecimal.
- 2Check the setup
Choose the units or calculation mode that matches your situation.
- 3Use the result
See equivalent binary, octal, decimal, and uppercase hexadecimal values.
Common questions
Binary / Decimal / Hex Converter FAQ
How does the Binary / Decimal / Hex Converter work?
Exact arbitrary-size integer parsing converts the selected input base to base 2, 8, 10, and 16 representations.
What information do I need?
Enter an integer and identify whether it is binary, octal, decimal, or hexadecimal.
How accurate is the result?
BigInt arithmetic preserves exact values for inputs up to 256 digits.