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Roman Numeral Converter

Convert between Roman numerals and decimals (1-3999) - Client-side processing

Decimal Number
Roman Numeral

Roman Numeral Reference

I
1
V
5
X
10
L
50
C
100
D
500
M
1000
Examples: IV = 4, IX = 9, XL = 40, XC = 90, CD = 400, CM = 900, MCMXCIV = 1994

What is Roman Numeral Converter?

Use our free online Roman Numeral Converter for data conversion and transformation tasks. This tool runs entirely in your browser with no data uploaded to any server, ensuring your privacy and security. Fast, free, and requires no installation or signup. Part of PKTools' collection of 100+ free online tools for developers, designers, and everyday users.

How to Use Roman Numeral Converter

1

Open the Roman Numeral Converter tool on PKTools.

2

Enter your input data in the provided field.

3

Configure any options or settings as needed.

4

Click the action button and copy or download the result.

Key Features

Free to use with no limits or signup required
100% client-side processing - your data stays private
Works on all devices (desktop, tablet, mobile)
Fast, instant results
Clean, intuitive user interface

Frequently Asked Questions

Is the Roman Numeral Converter tool free?

Yes, completely free with no usage limits, no signup required, and no premium features locked behind a paywall. All PKTools are free forever.

Is my data safe when using this tool?

Absolutely. All processing happens directly in your browser using JavaScript. No data is ever sent to our servers. Your information stays completely private on your device.

Does this tool work on mobile devices?

Yes, the Roman Numeral Converter is fully responsive and works on smartphones, tablets, laptops, and desktops across all modern browsers including Chrome, Firefox, Safari, and Edge.