Name calculations
Does an Apostrophe Change a Name Number? — Worked Letter Values
Compare O'NEIL (28 → 1) and ONEIL (28 → 1) in the repeating A–Z table, with explicit input and reduction rules.
Number JD Editorial Team · Published 2026-10-13
State the input rule
An apostrophe is punctuation, not a letter. Ignoring it should not mean dropping the letter after it.
This worked example uses written English A–Z letters. Spaces and punctuation have no value, case is normalized, and every letter occurrence counts. The examples are fictional strings for explaining a method, not readings of real people.
Calculate O'NEIL
Letter values: O(6) + N(5) + E(5) + I(9) + L(3) = 28. Full single-digit reduction is 28 → 10 → 1.
The assignment repeats after I=9: J=1, K=2 and so on. Copying the name into individual letters before adding makes omitted or duplicated letters easier to notice.
Compare with ONEIL
Letter values: O(6) + N(5) + E(5) + I(9) + L(3) = 28. Full reduction is 28 → 10 → 1.
The unreduced totals differ by 0. The written inputs differ, but the letter values add to the same total in this example.
Check vowel and consonant subtotals
Using A, E, I, O and U as vowels for O'NEIL, the vowel total is 20 and the remaining-letter total is 8. Their sum is 28. Y is treated as a consonant in this particular check; another stated convention may classify it differently.
Use the unreduced subtotals for this check. Adding reduced results can hide information, especially when a master-number stopping convention is introduced. An all-letter total and a vowel-only total summarize different inputs.
Keep the calculation separate from interpretation
Record the exact spelling, the letter table and the stopping rule. This example uses full reduction; a convention retaining 11, 22 or 33 should be named separately. Never change spelling merely to produce a preferred result without recording that choice.
The arithmetic is a way to document a symbolic practice. It is not evidence that a name is lucky, that someone should change their identity, or that one spelling will improve a career or relationship. Use real preferences, cultural context and practical needs when choosing how to write a name.
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About this interpretation
Number JD documents the stated numerology convention so readers can reproduce the calculation. The symbolic interpretation is not a scientific personality test or a prediction. See our editorial policy.
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