binary to decimal

Binary to Decimal Converter

Need to convert binary numbers to decimal quickly and accurately? Our free Binary to Decimal Converter gives instant results as you type — perfect for computing, coding, electronics, networking and digital systems.

Whether you are converting:

• 10 binary to decimal
• 1010 binary to decimal
• 1111 binary to decimal
• 11111111 binary to decimal

This simple online tool makes binary to decimal conversions fast and easy.

How to Convert Binary to Decimal

Binary uses only two digits: 0 and 1. Each digit represents a power of 2.

Formula:

Binary digits × powers of 2 = Decimal value

Binary to Decimal Example

If you want to convert 1010 binary to decimal:

• 1 × 8 = 8
• 0 × 4 = 0
• 1 × 2 = 2
• 0 × 1 = 0

8 + 0 + 2 + 0 = 10

So, 1010 binary equals 10 decimal.

What Is Binary?

Binary is a base-2 number system used by computers and digital systems. It only uses the digits 0 and 1.

What Is Decimal?

Decimal is the standard base-10 number system used in everyday life. It uses the digits 0 to 9.

Common Binary to Decimal Conversions

• 1 binary = 1 decimal
• 10 binary = 2 decimal
• 1010 binary = 10 decimal
• 1111 binary = 15 decimal
• 10000 binary = 16 decimal
• 11111111 binary = 255 decimal

Why Use Our Binary to Decimal Converter?

• Instant binary to decimal conversion
• Simple and easy to use
• Works both ways
• Useful for coding, computing and electronics
• No calculator needed