Il numero 1803, milleottocentotré in Italiano, in Inglese si dice one thousand eight hundred three.
Il numero ordinale 1803° in inglese si dice one thousand eight hundred third.
1794: one thousand seven hundred ninety-four
1795: one thousand seven hundred ninety-five
1796: one thousand seven hundred ninety-six
1797: one thousand seven hundred ninety-seven
1798: one thousand seven hundred ninety-eight
1799: one thousand seven hundred ninety-nine
1800: one thousand eight hundred
1801: one thousand eight hundred one
1802: one thousand eight hundred two
1804: one thousand eight hundred four
1805: one thousand eight hundred five
1806: one thousand eight hundred six
1807: one thousand eight hundred seven
1808: one thousand eight hundred eight
1809: one thousand eight hundred nine
1810: one thousand eight hundred ten
1811: one thousand eight hundred eleven
1812: one thousand eight hundred twelve