Number to Ordinal Converter
Convert integers to ordinal form: 1 → 1st, 22 → 22nd, 113 → 113th.
Quick Reference
1 → 1st2 → 2nd3 → 3rd4 → 4th10 → 10th11 → 11th12 → 12th13 → 13th20 → 20th21 → 21st100 → 100th101 → 101st111 → 111th1001 → 1001st
Ordinal suffix rules
English ordinal suffixes follow a simple pattern with one important exception. The general rule: 1 → st, 2 → nd, 3 → rd, 4–9 → th. The exception: numbers ending in 11, 12, or 13 always use thregardless of the tens digit — so 11th, 12th, 13th (not 11st, 12nd, 13rd), and also 111th, 112th, 113th. This applies to negative integers too: -1st, -11th. Related: word to number converter.
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