Summary charts explaining when and how to use ordinal numbers in English.
Main Ordinal Numbers Summary Chart
The main chart contains a list of all ordinal numbers from 1st to 31st written as the number and the word. Note, the ordinal numbers that have an irregular spelling (ninth, twelfth, twentieth, etc.) are highlighted. We have also included the ordinal numbers 40th, 41st, 50th, and 51st. In the lower left corner there are four common uses of ordinal numbers: dates, centuries, sequence/orde