Number Base Converter
Convert values between binary (base 2), decimal (base 10), and hexadecimal (base 16).
Allowed digits depend on the selected base.
| Number system | Value |
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Privacy: conversions run locally in your browser.
How it works
The converter first parses the input number using the selected base, converts it to a decimal value internally, and then formats that value into binary, decimal, and hexadecimal representations.
Examples
- Binary 1010 → Decimal 10
- Decimal 255 → Hex FF
- Hex A3 → Decimal 163
FAQ
- What is a number base?
A number base determines how many digits are used in a number system. For example, base-10 uses digits 0–9.
- What are common number bases?
Binary (base 2), Decimal (base 10), and Hexadecimal (base 16) are the most commonly used bases.
- Why do developers convert number bases?
Binary and hexadecimal are widely used in programming, memory addressing, and low-level computing.
- Are my inputs stored?
No. All calculations run locally in your browser and are not transmitted or stored.