Name Compatibility Calculator
Compare two names by their numerology values to get a compatibility score.
Last updated · View algorithm, constants and default inputs (JSON)
About this calculator
This test converts each name to a number using the Pythagorean letter values, then scores how close the two numbers sit on a nine-point cycle. Two names landing on the same number score highest, and the widest gaps score lowest.
Worked example
calculated with the default values below
First name Alex · Second name Jordan Compatibility 78 % · Number for the first name 6 · Number for the second name 8 · Numeric gap 2 · Verdict Compatible
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
S = round((9 − min(g, 9−g))/9 × 100); g = |d(N₁) − d(N₂)|
- S
- compatibility score, %
- g
- gap between name numbers
- N₁
- number of first name
- N₂
- number of second name
- d
- digital reduction
Letters carry Pythagorean values a–i = 1–9, repeating over j–r and s–z; values are summed and the digits re-added until ≤ 9; verdict thresholds: ≥85 highly compatible, ≥65 compatible, ≥45 workable.
Frequently asked questions
Why do two names landing on the same number score a hundred percent?
Each name is reduced to a single digit on a nine-point cycle using Pythagorean letter values, then the gap between the two digits sets the score. When both names reduce to the same digit the numeric gap is zero, which the model treats as the closest match and reports 100%. Widest gaps, like 1 versus 9, score lowest because they sit farthest apart on the cycle.