Calcometry
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Binary & Hex Converter
Whole-number decimal to binary and hex — useful for programming and electronics.
Decimal input
Whole numbers only — converts to binary and hexadecimal.
Binary
11111111
Hex: 0xFF
- Hexadecimal
- 0xFF
- Decimal
- 255
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Number bases
Binary is base-2; hexadecimal is base-16. Fractions are not supported in this tool.
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