Number systems

Number base converter

Edit any field to convert the same signed integer across four common bases with no rounding.

Live conversion

Equivalent representations

Up to 4,096 input digits

Decimal Base 10Digits 0–9

Binary Base 2Digits 0–1

Hexadecimal Base 16Digits 0–9 and A–F

Octal Base 8Digits 0–7

All representations are exact.