Number Base Converter

Runs in your browser

Convert numbers between decimal, binary, hexadecimal, octal, and Roman numerals.

Input Number

Input Format

Conversion Results

Decimal (10)

42

Binary (2)

101010

Hexadecimal (16)

0x2A

Octal (8)

0o52

Roman Numerals

XLII

How to Use Number Base Converter

Enter a number in the input field
Select the input format (Decimal, Binary, Hex, Octal, or Roman)
Click Convert to see results in all number bases
Copy any result using the copy button

Supported Number Systems

Decimal (Base 10) - Standard number system using digits 0-9
Binary (Base 2) - Computer number system using only 0 and 1
Hexadecimal (Base 16) - Uses 0-9 and A-F, common in programming
Octal (Base 8) - Uses digits 0-7, used in Unix permissions
Roman Numerals - Ancient number system using letters (I, V, X, L, C, D, M)

Features

Convert between all number bases instantly
Roman numeral support (1-3999)
Copy results with one click
Works entirely in your browser - no data is sent to any server

Use this tool from your AI client

Connect once with MCP, then let your assistant call this tool when you need it.

Connect your AI client

claude mcp add --transport http hyperteams-tools https://hyperteams.net/mcp/tools

Add to Cursor Add to VS Code

Available MCP tools

Your assistant can call these actions through the public tools server.

convert_number_base

Download SKILL.md

Give this file to your agent to teach it when and how to use this tool.