With this conversion table it’s easy to convert between Roman numerals and Arabic numbers.
It is very easy, for example, to convert the number 2014 to a Roman numeral.
There are two thousands. You find the symbols in the column of the thousands and the row of two, which is MM.
There are no hundreds in the number.
There is one ten. You find the symbols in the column of the tens and the row of one, which is X.
There are four ones. You find the symbols in the column of the ones and the row of four, which is IV.
So 2014 as Roman numeral is MMXIV.