1F in Decimal
Hexadecimal 1F equals 31 in decimal.
1F in all number bases
Decimal31
Hexadecimal0x1F
Binary0001 1111
Octal37
Try another value
Edit this value or switch its base. Your changes are calculated in your browser with exact integer arithmetic.
Input base:
Decimal
31Hex
0x1FBinary
0b11111Octal
0o37How 1f converts from hexadecimal to decimal
Multiply each digit by 16 raised to its position (starting at 0 from the right), then add the results:
1× 161 = 1 × 16 = 16
F× 160 = 15 × 1 = 15
Sum: 31
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