Transparent arithmetic
Numerology reduces dates and names to single digits, and small differences in method change the result. Each calculator here states its method, keeps the master numbers 11, 22 and 33 where the tradition does, and shows every sum, so you can compare with a book or another calculator line by line.
Which number to start with
The life path number comes from the full birth date and is the usual starting point. Name numerology adds the expression, soul urge and personality numbers from the letters of your name, and the personal year places a given year in the repeating nine-year cycle. Like astrology, numerology is a symbolic tradition for self-reflection, not a forecast.