Number Base Converter
Convert numbers between binary, octal, decimal and hex.
Result
Results are estimates for general information only and are not professional advice.
Number base conversion
Computers use binary (base 2) and hexadecimal (base 16), while we count in decimal (base 10). This converter takes a number in one base and shows its value in binary, octal, decimal and hexadecimal at once.
Frequently Asked Questions
What is the Number Base Converter?
Convert numbers between binary, octal, decimal and hex. It runs instantly in your browser and is completely free to use.
What do I need to enter to use the Number Base Converter?
The Number Base Converter asks for the following values (2): Value, From base. Fill them in and the result appears immediately — the calculation runs on your own device, so nothing you type is sent to a server.
How accurate is the Number Base Converter?
The Number Base Converter uses standard, widely-accepted formulas, so its figures are reliable estimates for everyday planning. They are not a substitute for advice from a qualified professional.
Is the Number Base Converter free, and do I need an account?
Yes. The Number Base Converter — and every other calculator on Calculatis — is completely free, with no registration, no download and no limit on how often you use it.