SU HIJUTSU ／ A date, drawn as numbers
How to calculate a life path number, with examples
To reproduce a life path calculation, use the same date format and stopping rule. Here is the exact method used by this site.
Calculate from the full birth date
- Write the date using the Gregorian year. Our example is May 14, 1990.
- Add every digit: 1+9+9+0+0+5+1+4=29.
- If necessary, add the digits of the total: 2+9=11.
- Stop at a single digit or at 11, 22 or 33. The life path in this example is 11.
Adding the digits to make a smaller number is called reduction here. Reducing 11 again would give 2, but the life path display retains 11.
Single-digit and master number examples
| Birth date | Initial total | Reduction | Life path |
|---|---|---|---|
| 2000-02-29 | 15 | 1+5=6 | 6 |
| 1990-05-14 | 29 | 2+9=11 | 11 |
| 2000-09-29 | 22 | Stop at 22 | 22 |
| 1990-09-05 | 33 | Stop at 33 | 33 |
A total of 10 becomes 1+0=1. A total of 44 becomes 4+4=8. Neither 10 nor 44 is a stopping point in this method.
Why reduction order can matter
For January 1, 1990, adding all digits gives 21, then 3. Reducing the year, month and day first gives 1+1+1=3 as well. Different procedures can agree for many dates.
January 1, 1980 shows a difference. The full-date sum gives 20, then 2. Reducing the year first gives 1980→18→9; adding the month and day gives 9+1+1=11. Check where a method reduces numbers and whether it retains intermediate master numbers before comparing results.
Names for different numerology figures
| Name | Input | Treatment |
|---|---|---|
| Life path | All birth date digits | Called 運命数 on the Japanese pages |
| Day number | Day of birth | Supporting figure |
| Birth year number | Gregorian birth year | Supporting figure |
| Personal year | Birth month, birth day and target year | Changes annually; reduced to 1–9 |
Labels such as soul number and destiny number can refer to name-based calculations in other systems. Compare the input and formula as well as the name.
Count the date matrix separately
The grid uses the original date before reduction. In 19900514, digit 1 occurs twice, 4 once, 5 once and 9 twice. Each grid cell displays that frequency.
- Keep the full year. Replacing 1990 with 90 changes the input.
- Distinguish adding the digits from counting each digit.
- Treat empty cells as a feature of the written date, rather than a diagnosis.