Audio Bitrate Converter
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Ordinal Number Converter
1 to 1st, 22 to twenty-second, and back — for a whole list at once.
Ordinals
Quick Tool Overview
The Ordinal Number Converter turns whole numbers into ordinals — 1st, 22ⁿᵈ or twenty-second — in bulk, following the 11th-12th-13th exception, and converts ordinals back into plain numbers.
- What it does
- Converts numbers to ordinals and back
- You give it
- A list of whole numbers or ordinals
- You get back
- Suffixes, superscripts or words
- Best for
- Rankings, certificates, dates and social posts
About the Ordinal Number Converter
Ordinal numbers say position rather than quantity — first, second, twenty-third — and their suffixes follow a rule with an awkward exception: 1, 2 and 3 take st, nd and rd, except when the number ends in 11, 12 or 13, which always take th. Get it wrong in a certificate, a leaderboard or a date and it shows.
Paste a list of numbers, one per line, and each becomes its ordinal: a short suffix such as 22nd, a superscript suffix such as 22ⁿᵈ for social posts, the full words twenty-second, grouped digits like 1,001st, or both together. Tick reverse to turn "21st" or "twenty-first" back into 21. Any size of whole number works.
Key features of the Ordinal Number Converter
Correct teen exception
Numbers ending in 11, 12 or 13 always take th, including 111th and 213th.
Five output styles
Suffix, superscript, words, grouped digits, or suffix and words together.
Superscript that pastes anywhere
Unicode ˢᵗ ⁿᵈ ʳᵈ ᵗʰ keeps its look in places without formatting.
Works in reverse
Turn 21st or twenty-first back into 21 for sorting and spreadsheets.
Any size
Very large whole numbers get the right suffix and ordinal words.
How to use the Ordinal Number Converter
-
1
Paste the numbers
One whole number per line — a ranking, a list of dates, anything.
-
2
Choose the style
Suffix, superscript, words, grouped digits or both.
-
3
Set the word case
lowercase, Title Case or UPPERCASE for the written-out ordinals.
-
4
Or reverse it
Tick reverse to convert ordinals back into plain numbers.
Frequently asked questions
Because eleven, twelve and thirteen are said "eleventh", "twelfth" and "thirteenth". The th rule applies to any number ending in 11, 12 or 13, so 112th and 213th too.
22nd, or twenty-second in words. Only the last word changes to its ordinal form.
Choose the superscript style. It uses Unicode modifier letters — ˢᵗ, ⁿᵈ, ʳᵈ, ᵗʰ — which paste into places without formatting, like social posts.
100th, one hundredth in words.
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