In short
- Reduce your day of birth, your month and your year each to a single digit, keeping 11, 22 and 33. Add the three results and reduce again. That is your life path.
- A second method adds every digit of the date in one row. It agrees for most dates and differs for some, which is why calculators disagree.
- Master numbers are kept at every stage in the first method and only at the end in the second, which is where the two methods part.
- This site uses the first method and shows both, so you can see which one any other source used.
The method in three steps
The life path number comes from your full date of birth and nothing else. The standard method, the one taught by Juno Jordan and most numerologists since, has three steps.
First, reduce the day to a single digit by adding its digits, unless it is 11 or 22, which stay as they are, or 29, which becomes 11 and stays. The 14th is 1 + 4 = 5. The 30th is 3 + 0 = 3. The 9th is 9.
Second, reduce the month the same way. January to September are already 1 to 9. October is 1 + 0 = 1, December is 1 + 2 = 3, and November is 11, kept as a master number.
Third, reduce the year: add all four digits, then add the digits of the result until a single digit or a master number is left. 1990 is 1 + 9 + 9 + 0 = 19 → 1 + 9 = 10 → 1. 1966 is 1 + 9 + 6 + 6 = 22, kept.
Then add the three reduced parts and reduce the sum the same way, stopping at 11, 22 or 33. The result is your life path number, and the life path pages describe what the tradition reads into each.
Six dates worked by hand
14 March 1990. Day 1 + 4 = 5. Month 3. Year 1 + 9 + 9 + 0 = 19 → 10 → 1. Sum 5 + 3 + 1 = 9. Life path 9.
31 December 1999. Day 3 + 1 = 4. Month 1 + 2 = 3. Year 1 + 9 + 9 + 9 = 28 → 10 → 1. Sum 4 + 3 + 1 = 8. Life path 8.
22 June 1949. Day 22, kept. Month 6. Year 1 + 9 + 4 + 9 = 23 → 5. Sum 22 + 6 + 5 = 33, kept. Life path 33, the rarest result in the system. The life path 33 page explains why so few dates reach it.
29 November 1988. Day 2 + 9 = 11, kept. Month 11, kept. Year 1 + 9 + 8 + 8 = 26 → 8. Sum 11 + 11 + 8 = 30 → 3. Life path 3. Two master numbers in the parts and none in the result, which is common and surprises people.
2 September 1966. Day 2. Month 9. Year 1 + 9 + 6 + 6 = 22, kept. Sum 2 + 9 + 22 = 33. Life path 33 again, reached by a different route: here the master number is in the year.
11 February 1978. Day 11, kept. Month 2. Year 1 + 9 + 7 + 8 = 25 → 7. Sum 11 + 2 + 7 = 20 → 2. Life path 2. This is a date on which the two methods disagree, and the next section explains why.
The other method, and where it disagrees
A simpler method adds every digit of the date in one row and reduces the total. For 14 March 1990 that is 1 + 4 + 3 + 1 + 9 + 9 + 0 = 27 → 9, the same answer as before. For most dates the two methods agree, which is why the simpler one survives.
They disagree on dates involving master numbers, and in both directions. For 11 February 1978, the all-digits method gives 1 + 1 + 2 + 1 + 9 + 7 + 8 = 29 → 11, so the person is an 11 by one method and a 2 by the other. For 4 August 1961, the standard method gives 4 + 8 + 8 = 20 → 2 and the all-digits method gives 29 → 11, which is why Barack Obama appears on lists of famous 11s and famous 2s depending on who compiled them. For 18 June 1942, Paul McCartney’s date, the standard method gives 9 + 6 + 7 = 22 and the all-digits method gives 31 → 4.
The reason is structural. The standard method can find a master number inside a part (a day of 11 or 29, a year of 1966) and keep it, which pushes totals up. The all-digits method only sees a master number if the grand total happens to land on one.
Neither is an error. They are two rules, and a calculator that does not say which it uses is the source of most arguments about life path numbers. The calculator on this site uses the standard method and shows the other beside it whenever the two differ.
Mistakes people make
Reducing the master numbers. A calculator or a reader who reduces 11 to 2 at every stage will never produce a life path 11, 22 or 33 and will give 2, 4 and 6 to people the tradition would read differently. The master numbers article explains the rule and why it exists.
Treating November as 2. The month is 11 and stays 11 in the standard method. Reducing it changes the total for every November birthday.
Reducing the year digit by digit instead of as a sum. 1990 is 1 + 9 + 9 + 0 = 19, then 1 + 9 = 10, then 1. Taking the year as 1 + 9 + 9 + 0 and stopping at 19 gives a wrong total.
Using the wrong year. People born near midnight on 31 December, or in a time zone where the date differs, occasionally use the wrong date. Numerology uses the date on the birth certificate.
Confusing the life path with the birthday number. The birthday number is the day of the month alone. The life path is the whole date. Someone born on 14 March 1990 is a 9 life path and a 5 birthday number.
What the number is, and what it is not
The life path number is a convention: a rule applied to a date, which gives the same answer every time and can be checked by anyone. The tradition reads it as the broad pattern of a life, and this site’s twelve life path pages set out those readings with the arithmetic shown. What the number is not is evidence of anything. No study has found that people with the same life path share a temperament, and the article on whether numerology is real goes through what has been tested. The honest way to use the number is the way the better numerologists suggest: as a prompt to think about whether you lead or support, build or explore, and what you would do differently if you decided on purpose.