Numerology Calculator
Calculate your life path, expression, soul urge and personality numbers from your name and birth date.
Last updated · View algorithm, constants and default inputs (JSON)
Results
About this calculator
Numerology reduces letters to digits with the Pythagorean table, so A is one, J is one and S is one, then sums and reduces until a single digit or a master number of eleven, twenty-two or thirty-three remains. The life path uses the birth date, the expression the full name.
Worked example
calculated with the default values below
Full name at birth Jane Doe · Date of birth 1990-01-01 Life path number 3 · Expression number 9 · Soul urge number 8 · Personality number 1 · Birth day number 1 · Life path meaning Creative and expressive
General background references
Disclaimer
These calculators give general estimates. Sizing, pricing, availability and standards vary by brand, retailer and country, so treat the output as a starting point and confirm it against the seller's or authority's own figures.
Implementation source
This record describes the implementation used by this page. It is not independent validation. External references, when available, support only the stated formula or definition; estimates and custom rules retain their own assumptions.
Formula and variables
L = DR(Σ_{i=1}^{n} d_i); E = dr(Σ_{j=1}^{m} v_j)
- L
- life path number
- E
- expression number
- S
- soul urge (vowels)
- P
- personality (consonants)
- DR
- digit reduction
- d_i
- i-th digit of birth date
- n
- number of birth-date digits
- v_j
- value of the j-th letter
- m
- number of letters
Pythagorean letter values a–i = 1–9 repeating; DR keeps master numbers 11, 22 and 33 unreduced; vowels are a, e, i, o, u; birthday number = calendar day.
Frequently asked questions
Why does my life path number come from my birth date, not my name?
The life path reduces your full birth date — year, month and day — down to a single digit or a master number of 11, 22 or 33, following the Pythagorean table. The expression, soul urge and personality numbers instead come from your birth name, so two people with the same name but different birth dates get the same expression yet different life paths. Master numbers are kept, not reduced further.