Binary Converter

Convert binary numbers to decimal, hexadecimal, octal, and any base (2-36). Get instant results with visual bit diagrams, step-by-step explanations, and grouped formatting for easy reading.

Free to useNo sign-up requiredUpdated Jan 2026

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About Binary Converter

Welcome to the Binary Converter, a powerful free online tool that converts binary numbers to decimal, hexadecimal, octal, and any numeral base from 2 to 36. This tool provides instant results with visual bit diagrams, step-by-step conversion explanations, and grouped formatting for easy reading.

What is a Binary Number System?

Binary is a base-2 numeral system that uses only two digits: 0 and 1. It is the fundamental language of computers and digital electronics. Each binary digit (called a "bit") represents a power of 2, and computers use binary because electronic circuits can easily represent two states: on (1) and off (0).

Key Concept: In binary, each position represents a power of 2, starting from 2⁰ = 1 on the right. For example, the binary number 1011 represents: 1×2³ + 0×2² + 1×2¹ + 1×2⁰ = 8 + 0 + 2 + 1 = 11 in decimal.

Common Number Systems Comparison

Binary (2)	Decimal (10)	Hex (16)	Octal (8)
0000	0	0	0
0001	1	1	1
0010	2	2	2
0011	3	3	3
0100	4	4	4
0101	5	5	5
0110	6	6	6
0111	7	7	7
1000	8	8	10
1001	9	9	11
1010	10	A	12
1011	11	B	13
1100	12	C	14
1101	13	D	15
1110	14	E	16
1111	15	F	17

How to Convert Binary to Decimal

Enter binary number: Type your binary number using only digits 0 and 1. You can enter up to 128 digits.
Click Convert: Click the Convert button to process your binary number and see results in multiple bases.
View primary results: See your binary number converted to decimal, hexadecimal, and octal with grouped formatting for easy reading.
Explore visual diagram: View the visual bit diagram showing each nibble (4 bits) with its corresponding hex and decimal value.
Learn from step-by-step explanation: Understand the conversion process through detailed step-by-step breakdown showing how each bit contributes to the final value.

Binary to Hexadecimal Conversion

Converting binary to hexadecimal is straightforward because 16 is a power of 2 (16 = 2⁴). Each hexadecimal digit corresponds to exactly 4 binary bits (a nibble):

Quick Method: Group binary digits into sets of 4 from right to left, padding with leading zeros if needed. Then convert each group to its hex equivalent. For example: 11010110 → 1101 0110 → D6

Why Hexadecimal is Popular

Compact representation: One hex digit replaces 4 binary digits
Memory addresses: Computer memory locations use hex (e.g., 0x7FFFFFFF)
Color codes: Web colors use hex (e.g., #FF5733 for orange-red)
MAC addresses: Network hardware IDs use hex pairs (e.g., 00:1A:2B:3C:4D:5E)
Assembly programming: Machine code instructions are often displayed in hex

Frequently Asked Questions

What is a binary number system?

Binary is a base-2 numeral system that uses only two digits: 0 and 1. It is the fundamental language of computers and digital electronics. Each binary digit (bit) represents a power of 2, and computers use binary because electronic circuits can easily represent two states: on (1) and off (0).

How do I convert binary to decimal?

To convert binary to decimal, multiply each binary digit by 2 raised to the power of its position (starting from 0 on the right), then sum all values. For example, 1011 in binary = 1×2³ + 0×2² + 1×2¹ + 1×2⁰ = 8 + 0 + 2 + 1 = 11 in decimal.

How do I convert binary to hexadecimal?

To convert binary to hexadecimal, group the binary digits into sets of 4 bits (nibbles) from right to left, padding with zeros if needed. Then convert each group to its hex equivalent (0-9 or A-F). For example, 11010110 becomes D6: 1101=D and 0110=6.

What is the relationship between binary and hex?

Hexadecimal and binary have a direct relationship because 16 is a power of 2 (16 = 2⁴). Each hex digit represents exactly 4 binary bits. This makes hex a convenient shorthand for binary: instead of writing 16 binary digits, you can write just 4 hex digits. This is why programmers often use hex for memory addresses and color codes.

What is the maximum binary number this converter supports?

This converter supports binary numbers up to 128 digits long, which can represent extremely large values (up to 2¹²⁸). This covers virtually all practical use cases including 64-bit integers, cryptographic values, and very large numbers.

Related Resources

Binary Number - Wikipedia
Number Systems Introduction - Khan Academy
Hex Converter - Convert hexadecimal to other bases
Binary Calculator - Perform binary arithmetic operations
Decimal to Binary Converter - Convert decimal numbers to binary

Reference this content, page, or tool as:

"Binary Converter" at https://MiniWebtool.com/binary-converter/ from MiniWebtool, https://MiniWebtool.com/

by miniwebtool team. Updated: Jan 10, 2026

Developer API available: Run this tool from your app, automation, or agent with one JSON HTTP request. View API docs

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