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Enter content, process with one click
1Introduction
The Roman numeral converter supports conversion between Arabic numerals and Roman numerals. Roman numerals are composed of I, V, X, L, C, D, M, following addition and subtraction rules. This tool automatically identifies the input format: if it is a number, it converts to Roman numerals; if it is a Roman numeral, it converts to an Arabic numeral. Suitable for historical learning, clock making, encoding, and other scenarios. Simple operation with accurate results.
2How to Use
Enter numeral or Roman numeral
Enter an Arabic numeral (e.g., 2023) or a Roman numeral (e.g., MMXXIII) in the input box.
Click Convert
Click the 'Convert' button.
View result
Automatically identify and output the conversion result.
3FAQ
What is the maximum supported number?
Supports 1 to 3999; out of range will prompt an error.
What happens if I enter an invalid Roman numeral?
It will prompt 'Invalid Roman numeral'. Please check the input format.
