How to Write Out Ordinal Numbers in Words in (US) American English, Rules, How to Spell Out, Exceptions, Comparison to (UK) British English.

1. What are the ordinal and the cardinal numbers?

1.1. Ordinal numbers - are those numbers defining a thing's position in a series:

1.2. Cardinal numbers - are those numbers denoting quantity, as opposed to ordinal numbers.

2. How to write out cardinal numbers (those denoting quantity)?

2.1. Useful notes / guidelines:

3. How to spell ordinal numbers (those denoting order)?

Most ordinal numbers end in "th", so just add "th" to the end of the cardinal number:

3.1. Exceptions:

3.2. In compound ordinal numbers only the last digit is written as an ordinal:

3.3. When expressing ordinal numbers as figures, the last two letters of the written word are added to the ordinal number:

Calculator: convert ordinal numbers to (US) American English words, write them out using letters instead of numerals

4. Here there are the main ordinal numbers:

Calculator: convert ordinal numbers to (US) American English words, write them out using letters instead of numerals

5. When to write out ordinal numbers?

Calculator: convert ordinal numbers to (US) American English words, write them out using letters instead of numerals