1 in Roman numerals, how to write?

1 = I
0 = ? ... 2 = ?

In Roman numerals online converter

Latest conversions of numbers to Roman numerals

12 = XII Apr 20 03:24 UTC (GMT)
84 = LXXXIV Apr 20 03:24 UTC (GMT)
14 = XIV Apr 20 03:24 UTC (GMT)
1 = I Apr 20 03:24 UTC (GMT)
9 = IX Apr 20 03:24 UTC (GMT)
14 = XIV Apr 20 03:24 UTC (GMT)
1 = I Apr 20 03:24 UTC (GMT)
2 = II Apr 20 03:24 UTC (GMT)
2,017 = MMXVII Apr 20 03:24 UTC (GMT)
94 = XCIV Apr 20 03:24 UTC (GMT)
1,932 = MCMXXXII Apr 20 03:24 UTC (GMT)
10 = X Apr 20 03:24 UTC (GMT)
13 = XIII Apr 20 03:24 UTC (GMT)
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