Understand the calculation, step by step
Have a question about names, formulas or interpretations? These guides explain the rules we use and what you can check for yourself.
10 guides
- Getting started
What numerology is and is not
Understand numerology as a symbolic practice, what name and date calculations do, and how to separate a useful reflection from a validated claim.
Explore - History and systems
Numerology history: selected sources and their limits
Four landmarks in number philosophy, Lo Shu and modern books, with identified passages and limits on claims about ancient origins.
Explore - Calculations and rules
Modern Western numerology method
Follow Numerus's modern Western calculation rules: letter values, accents, Y, master numbers and each profile formula.
Explore - Calculations and rules
Master numbers and reduction choices
See why 11, 22 or 33 can be kept in one calculation and reduced in another, with a shared-input comparison and Numerus's exact stopping rules.
Explore - Calculations and rules
Personal year calculation and reflection guide
Calculate any selected Personal Year with Numerus's 1–9 rule, follow an engine-generated nine-year ring and use each theme as an optional reflection prompt.
Explore - Getting started
What does the evidence say about numerology?
Separate peer review, personality assessment and prediction from arithmetic you can verify. See what the reviewed evidence establishes and where it stops.
Explore - History and systems
Western, Chaldean, Lo Shu and psychomatrix compared
Compare Western, Chaldean, Lo Shu and psychomatrix operations using the same name and date. See why different results need different explanations.
Explore - Calculations and rules
Complete numerology calculation examples
Follow complete profiles for Romanian diacritics, compound names and master numbers. See why an unchanged result, a missing value and a rejected date mean different things.
Explore - Calculations and rules
Why numerology calculators give different results
Compare inputs, positions, alphabets and reduction rules to find the first step where two numerology results split. Includes live, reproducible examples.
Explore - Calculations and rules
How common is each Life Path number?
A reproducible count of every valid date from 1900 through 2099 using the Numerus western-v1 Life Path rule.
Explore
Start with the question you have
New to numerology? Begin with what it is and what it is not. It separates a calculation, a symbolic reading and a claim that would need evidence.
Trying to check an answer? Open the Western method for letter values and reduction rules. The worked examples let you follow accented names and compound names through the same engine as the calculator.
Comparing two websites? Check the master-number conventions. Identify the first operation where the traces differ before comparing the final readings.
Wondering why a description feels accurate? Read evidence and limits. Recognition, correct arithmetic and scientific validation are separate questions.
The articles below are grouped around the concepts you need to follow a result. You can start with one question and stop when it has been answered; there is no required reading sequence.