Ordinal Number Converter
Enter any cardinal number and instantly get its ordinal numeral (22nd) and word form (twenty-second).
Numeral form
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Word form
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Quick examples
Bulk Results
| Input | Numeral | Word Form |
|---|
Ordinal Suffix Rules
-st
Ends in 1 (except 11): 1st, 21st, 31st, 101st…
-nd
Ends in 2 (except 12): 2nd, 22nd, 32nd, 102nd…
-rd
Ends in 3 (except 13): 3rd, 23rd, 33rd, 103rd…
-th
All others, including 11th, 12th, 13th: 4th, 10th, 11th, 12th, 13th, 111th, 112th…
Common examples
1th*
first
2th*
second
3th*
third
4th*
fourth
5th*
fifth
10th*
tenth
11th*
eleventh
12th*
twelfth
13th*
thirteenth
20th*
twentieth
21th*
twenty-first
100th*
one hundredth
1000th*
one thousandth
* Displayed suffix is illustrative; the converter applies the correct suffix automatically.
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Summary
Enter any cardinal number and instantly get its ordinal numeral (22nd) and word form (twenty-second).
How it works
- Type or paste a whole number (0–999,999,999,999) into the input field.
- The tool detects the correct suffix (–st, –nd, –rd, or –th) and displays the numeral ordinal.
- The word-form engine expands the number into English words, then appends the ordinal ending (–first, –second, –third, –th).
- Use the Copy buttons next to each result to copy either form to your clipboard.
- Convert a batch of numbers by typing one per line in the bulk-conversion panel.
Use cases
- Writing dates and position rankings in formal documents.
- Generating ordinal labels for leaderboards and competition results.
- Teaching or checking ordinal number rules in English.
- Automating caption or title generation that requires ordinal words.
- Formatting footnotes and endnotes with correct ordinal numbering.
- Producing ordered list headings with fully spelled-out word forms.
- Verifying the correct suffix for irregular values like 11th, 12th, and 13th.
- Bulk-converting lists of cardinal numbers to their ordinal equivalents.
Frequently Asked Questions
Last updated: 2026-06-11 ·
Reviewed by Nham Vu