R2DD2R

Roman Numerals / Decimal Conversion Utility - R2DD2R.EXE, version 1.00 (for Windows XP+). Performs quick and accurate conversion between Roman Numerals and Decimal notation in either direction. Handy Roman Numerals Reference Table is also provided. Cut and paste from/into the user input textbox fields or from the Roman Numerals Reference Table for ease of use. R2D conversion direction automatically applies the subtractive principle rules formatting and checks for invalid character combinations. Roman Numeral values greater than 3, 999 decimal are shown with the parentheses convention to signify that the base characters are multiplied by 1, 000.