Binary to Decimal Converter

Enter a binary number and press Convert (e.g. 1101 → 13):

Binary Number (Base 2)

Decimal Result (Base 10)

How to Convert Binary to Decimal

Each binary digit represents a power of 2, starting from the rightmost digit (2⁰).

Decimal = b₍ₙ₎×2ⁿ + b₍ₙ₋₁₎×2ⁿ⁻¹ + ... + b₁×2¹ + b₀×2⁰

1×2³ + 1×2² + 0×2¹ + 1×2⁰ = 8 + 4 + 0 + 1 = 13

Binary	Decimal	Hex