Free WordPress Plugin: Roman numeral converter produces Roman numerals from Arabic numbers or converts Arabic numbers to Roman numerals, with values between 1 and 3,999,999. www.calculator.io/roman-numeral-converter/

This is my first program - a Roman numeral calculator, using the simplified rules for Roman numerals (addition only). It takes two numbers of any length, and can perform the four basic arithmetic operations as desired. Currently, this is a very WIP program, only able to do one operation at a time, but I hope to be able to expand it in the future.