Life Path Number Calculator (Numerology, with Master Numbers & Karmic Debt)

How it works

Reduce the month, the day and the year of birth separately to one digit (keeping 11, 22 and 33), add them, then reduce the total by adding its digits until one digit or a master number remains · karmic debt: 13, 14, 16 or 19 appearing just before the final reduction · birthday number = the day of birth reduced

In Pythagorean numerology the life path number, derived from the full birth date, is considered the most important number in a chart. The usual method reduces month, day and year separately before adding, which preserves the "master numbers" 11, 22 and 33; adding every digit at once usually gives the same single digit but can hide a master number. The calculator shows every step and the traditional archetype. Numerology is a belief system with no scientific basis — enjoy it as entertainment and self-reflection, not as prediction.

Worked example

Birth date May 15, 1990: month 5; day 15 → 1 + 5 = 6; year 1990 → 1 + 9 + 9 + 0 = 19 → 10 → 1. Then 5 + 6 + 1 = 12 → 1 + 2 = 3: life path 3, "The Communicator". The birthday number is 6 and there is no karmic debt.

Sources: Encyclopaedia Britannica — Numerology · Skeptical Inquirer — Numerology

Frequently asked questions