Number Base Converter
Developer ToolsConvert number bases
Signed
(2 - 36)
About Number Base Converter
Convert numbers between Binary, Octal, Decimal, and Hexadecimal. BigInt support for large numbers.
Frequently Asked Questions
What number bases are supported?
We support Binary (base 2), Octal (base 8), Decimal (base 10), and Hexadecimal (base 16). You can also enter any custom base from 2 to 36.
How does binary conversion work?
Binary uses only 0 and 1. Each position represents a power of 2. For example, binary 1010 equals decimal 10 (8+0+2+0).
What is hexadecimal used for?
Hexadecimal (base 16) uses digits 0-9 and letters A-F. It is widely used in programming for colors, memory addresses, and representing binary data compactly.
Is my data safe?
Yes. All conversions happen in your browser. No data is sent to any server.
Can it handle large numbers?
Yes. We use BigInt for arbitrary precision, so you can convert numbers of any size without losing accuracy.
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