Number Converter

Number Converter

Convert between Binary, Decimal, Octal, Hexadecimal, and Text formats

Enter a valid number or text in the selected format
Converted Result
11111111
Decimal 255 = Binary 11111111 (8-bit representation)
Number Systems Explained
Decimal
Base-10 number system using digits 0-9. The standard system used in everyday life.
Base 10
Binary
Base-2 system using only 0s and 1s. Fundamental to digital electronics and computing.
Base 2
Octal
Base-8 system using digits 0-7. Historically used in computing for its compactness.
Base 8
Hexadecimal
Base-16 system using 0-9 and A-F. Widely used in programming and memory addressing.
Base 16
Conversion Examples
Decimal 10
Binary: 1010
Decimal 255
Hex: FF
Binary 1101
Decimal: 13
Hex 1A
Decimal: 26

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Creator & Maintainer

Image of Faiq Ur Rahman, CEO & Founder Toolraxy

Faiq Ur Rahman

Founder & CEO, Toolraxy

Faiq Ur Rahman is a web designer, digital product developer, and founder of Toolraxy, a growing platform of web-based calculators and utility tools. He specializes in building structured, user-friendly tools focused on health, finance, productivity, and everyday problem-solving.

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About

The Number Converter is an advanced digital tool designed for programmers, students, and technical professionals, providing instant, accurate conversions between binary, decimal, octal, hexadecimal, and text formats. Featuring intelligent validation, real-time feedback, and ASCII character encoding capabilities, this comprehensive converter handles complex number system transformations with precision. Each conversion includes color-coded results and educational insights into different numerical bases, making it ideal for programming tasks, computer science education, data analysis, and technical problem-solving. The responsive interface ensures seamless operation across all devices while maintaining professional-grade accuracy for both simple conversions and complex text-to-number encoding scenarios.

How to Use

  1. Enter your value in the input field (number or text)

  2. Select the format you’re converting FROM (Binary, Decimal, Octal, Hexadecimal, or Text)

  3. Select the format you’re converting TO

  4. View the converted result instantly displayed

  5. Click the swap button (↔) to reverse the conversion direction

  6. Check the conversion info below for details about the conversion

Features

5 Format Support – Convert between Binary, Decimal, Octal, Hexadecimal, and Text formats

Smart Validation – Real-time input validation with format-specific error messages

Text-Number Conversion – Convert text to ASCII codes and vice versa

Color-Coded Results – Different background colors for each number system

Educational Content – Detailed explanations of each number system with base indicators

Format-Specific Hints – Dynamic input hints that change based on selected format

FAQs

What is the maximum number size this converter can handle?

The converter uses JavaScript’s number precision, handling numbers up to 2^53-1 (about 9 quadrillion).

Each character is converted to its ASCII code, then those codes are converted to the selected number format.

They’re different base systems: Binary (base-2: 0-1), Octal (base-8: 0-7), Hexadecimal (base-16: 0-9, A-F).

ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns numbers to letters and symbols.

Group binary digits into sets of 4 (from right), then convert each group to hex (0000=0, 1111=F).

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