Los números ordinales (ordinal numbers) se utilizan para expresar un orden.
- 1st = First (primero)
- 2nd = Second (segundo)
- 3rd = Third (tercero)
- 4th = Fourth (cuarto)
- 5th = Fifth (quinto)
- 6th = Sixth (sexto)
- 7th = Seventh (séptimo)
- 8th = Eighth (octavo)
- 9th = Ninth (noveno)
- 10th = Tenth (décimo)
- 11th = Eleventh (undécimo)
- 12th = Twelfth (duodécimo)
- 13th = Thirteenth (decimotercero)
- 14th = Fourteenth (decimocuarto)
- 15th = Fifteenth (decimoquinto)
- 16th = Sixteenth (decimosexto)
- 17th = Seventeenth (decimoséptimo)
- 18th = Eighteenth (decimoctavo)
- 19th = Nineteenth (decimonoveno)
- 20th = Twentieth (vigésimo)
- 21st = Twenty first (vigésimo primero)
- 22nd = Twenty second (vigésimo segundo)
- 23th = Twenty third (vigésimo tercero)
- 24th = Twenty fourth (vigésimo cuarto)
- 25th = Twenty fifth (vigésimo quinto)
- 30th = Thirtieth (trigésimo)
- 40th = Fortieth (cuadragésimo)
- 50th = Fiftieth (quincuagésimo)
- 60th = Sixtieth (sexagésimo)
- 70th = Seventieth (septuagésimo)
- 80th = Eightieth (octogésimo)
- 90th = Ninetieth (nonagésimo)
- 100th = One Hundredth (centésimo)
- 1000th = One Thousandth (milésimo)
- 1000000th = One Millionth (millonésimo)