Measurement calculator that can be used to convert Vigesimal (Base 20) to Roman numeral (ancient), among others.
Convert Vigesimal (Base 20) to Roman numeral (ancient):Choose the right category from the selection list, in this case 'Numeral systems'. Next enter the value you want to convert. From the selection list, choose the unit that corresponds to the value you want to convert, in this case 'Vigesimal (Base 20)'. Finally choose the unit you want the value to be converted to, in this case 'Roman numeral (ancient)'.