Roman Numerals Converter (Number ↔ Roman, Free)
Convert numbers and Roman numerals both ways with steps, strict validation, vinculum notation up to 3,999,999, dates, arithmetic and a chart for any range.
Missing Numerals
To find a missing numeral, use the relationship the problem gives you: work backwards from the total, apply the inverse operation, or use the pattern in the sequence. The worked examples below cover each of those cases, with practice problems and a full answer key.