Math
Hex Converter
Convert freely between hexadecimal, decimal, and binary.
Inputs
Hex Converter
Result
Hexadecimal
FF
- Decimal
- 255
- Binary
- 11111111
- Octal
- 377
How it's calculated
Hex uses base 16: digits 0-9 then A(=10) … F(=15).
Common questions
Is the input case sensitive?
No — both 'ff' and 'FF' parse to 255.
Can I paste a 0x prefix?
Yes. Leading '0x' is stripped automatically.
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