The roman numeral DX corresponds to the arabic number 510.
DX = 510
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Symbols are written and read from left to right, from highest to lowest.
If number DX is within to text or sentence it should be read in its equivalent in arabic numbers, in this case 510.
DIX is number 509
DXI is number 511
Calculate the conversion of any number and its equivalent in roman numerals with our roman numerals converter.