Binary Converter

FAST • FREE • ACCURATE

Binary Converter

Convert binary to decimal, octal, hexadecimal, and every other common number base in seconds.

✓ No signup✓ Instant results✓ Works on any device

FREE NUMBER BASE TOOL

Convert Binary to Decimal

Enter a number and get an accurate result instantly.

Decimal result—

Numbers may include a leading minus sign. Hexadecimal accepts A–F.

POPULAR CONVERSIONS

Choose a conversion

Binary to Octal→Binary to Decimal→Binary to Hexadecimal→Octal to Binary→Octal to Decimal→Octal to Hexadecimal→Decimal to Binary→Decimal to Octal→Decimal to Hexadecimal→Hexadecimal to Binary→Hexadecimal to Octal→Hexadecimal to Decimal→

NUMBER SYSTEM GUIDE

What is a binary converter?

A binary converter translates a number from one number system into another. Binary uses only 0 and 1, while decimal uses ten digits, octal uses eight, and hexadecimal uses sixteen symbols. This tool handles the arithmetic for you accurately.

How to convert a binary number

  1. Select Binary as the source number system.
  2. Choose Decimal, Octal, or Hexadecimal as the result format.
  3. Type or paste your number. Your result appears instantly.

Why use different number bases?

Computers work in binary. Decimal is practical for everyday counting, octal gives a compact binary shorthand, and hexadecimal makes long binary values easier for developers to read. Converting between them helps when programming, studying computer science, or troubleshooting technical data.

HELPFUL ANSWERS

Binary converter FAQ

Is this binary converter free?

Yes. You can use every conversion tool without creating an account or installing software.

Can I convert negative numbers?

Yes. Enter a minus sign before a valid number, such as -1010, and the converter preserves its value.

What digits can I use?

Binary accepts 0–1, octal accepts 0–7, decimal accepts 0–9, and hexadecimal accepts 0–9 plus A–F.