How do I convert numbers to ordinals?

Enter one or more numbers in the input panel — separated by commas, spaces, or newlines. Each number is instantly converted to its ordinal form (1st, 2nd, 3rd, 4th, etc.).

How are 11th, 12th, and 13th handled?

These are special cases: 11, 12, and 13 always use the 'th' suffix regardless of the tens digit. So 111th, 112th, 113th are also correct. The tool handles all these edge cases automatically.

Is the ordinal converter free?

Yes, completely free. The conversion runs entirely in your browser — no data is sent to any server, and no signup is required.

Number to Ordinal Converter

Convert numbers to ordinal suffixes instantly online. Enter one or multiple numbers and get 1st, 2nd, 3rd, 4th... Handles special cases like 11th, 12th, 13th. Free — runs in your browser.

Numbers (one per line or comma-separated)

Ordinal Output

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Ordinal Suffix Rules

1→1st

2→2nd

3→3rd

4–20→4th–20th

21→21st

11→11th

12→12th

13→13th

Exceptions: 11th, 12th, 13th always use th regardless of the tens digit.