A simple calculator that can easily convert roman numerals to numbers and vice versa! Also has addition, subtraction, multiplication and division functions that can perform operations any two roman numerals / numbers. To clear the output in the display, simply click "CLEAR". To switch from the number pad to the roman numeral keys, click "ROMAN". To revert back to the number pad, click "NUMBER". Calculation range from -5000 to 5000. Please enjoy this app and don't forget to give a review an