TEXTⅠRoman Numeral
1-3999 · bidirectional
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Supports the classic Roman range 1 ~ 3999. The 7 Roman characters are: I(1) V(5) X(10) L(50) C(100) D(500) M(1000).
Roman Numeral: 1-3999, Bi-Directional
Typical scenarios: ① read Roman numerals in historical documents or movie years; ② create clock faces and chapter numbers; ③ use Roman numerals in poster or logo design.
How to use: enter an Arabic number to convert to Roman, or a Roman numeral to convert to Arabic — bi-directional, copy the result in one click.
Notes: ① the supported range is 1–3999; ② Roman numerals have no zero or negatives — these return empty or a prompt; ③ both cases are recognized, but uppercase is the conventional choice.
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