Number Converter

Convert numbers between different formats (decimal, binary, hexadecimal, octal)

Key Facts

Category
Math, Date & Finance
Input Types
text, select
Output Type
text
Sample Coverage
4
API Ready
Yes

Overview

The Number Converter is a versatile utility designed to seamlessly translate numeric values between decimal, binary, hexadecimal, and octal systems. Whether you are working on low-level programming, digital logic, or general mathematical calculations, this tool provides accurate and instant base conversions.

When to Use

  • •When you need to convert memory addresses or color codes from hexadecimal to decimal.
  • •When working with binary data streams and needing to verify their decimal or hex equivalents.
  • •When performing cross-base arithmetic or verifying calculations in different number systems.

How It Works

  • •Enter the number you wish to convert into the input field.
  • •Select the current base of your number from the 'Input Format' dropdown.
  • •Choose your desired target base from the 'Output Format' dropdown.
  • •View the converted result instantly on the screen.

Use Cases

Software developers debugging low-level hardware registers or memory dumps.
Students learning computer science fundamentals and digital logic design.
Web designers converting CSS color hex codes to RGB decimal values.

Examples

1. Converting Hex Color to Decimal

Web Developer
Background
A developer needs to convert a CSS hex color code (#FFFFFF) into its decimal RGB equivalent for a specific API requirement.
Problem
Manual calculation of base-16 to base-10 is prone to error.
How to Use
Input 'FFFFFF', set Input Format to 'Hexadecimal', and Output Format to 'Decimal'.
Outcome
The tool outputs 16777215, providing the correct decimal value for the color.

2. Binary to Decimal for IP Subnetting

Network Administrator
Background
An administrator is analyzing a subnet mask represented in binary format (11111111.11111111.11111111.00000000).
Problem
Quickly identifying the decimal representation of the subnet mask.
How to Use
Input '11111111', set Input Format to 'Binary', and Output Format to 'Decimal'.
Outcome
The tool returns 255, confirming the octet value for the subnet mask.

Try with Samples

math-&-numbers
Number & Currency Samples
Text containing various number and currency formats for testing currency extraction
title token number
sample
EU VAT Number Samples
Collection of EU VAT numbers from all member states for validation testing
title token number
sample
Passport Number Samples
Collection of valid passport number samples from various countries (China, USA, Japan, UK, Germany, etc.) for testing
title token number
sample
Global Phone Number Samples
Collection of phone numbers from various countries for validation testing
title token number
sample

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FAQ

Which number systems are supported?

The tool supports Decimal (Base 10), Binary (Base 2), Hexadecimal (Base 16), and Octal (Base 8).

Is there a limit to the size of the number I can convert?

The tool handles standard numeric inputs; however, extremely large numbers may be subject to browser-based floating-point precision limits.

Can I convert from binary to hexadecimal directly?

Yes, simply set the input format to Binary and the output format to Hexadecimal.

Does this tool work offline?

Once the page is loaded, the conversion logic runs locally in your browser, allowing for offline use.

Are negative numbers supported?

Yes, the converter supports negative integers across all available base formats.

API Documentation

Request Endpoint

POST /en/api/tools/number-converter

Request Parameters

Parameter Name Type Required Description
numberInput text Yes -
inputFormat select Yes -
outputFormat select Yes -

Response Format

{
  "result": "Processed text content",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}
Text: Text

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-number-converter": {
      "name": "number-converter",
      "description": "Convert numbers between different formats (decimal, binary, hexadecimal, octal)",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=number-converter",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

If you encounter any issues, please contact us at [email protected]