The table compares zodiac sign and its traditional element, birth number, weekday, calendar-day gap, and whether the stored birth colors match.
Compatibility
Compare the facts for two dates, with entertainment clearly separated from the factual table.
At a glance
Compare your birthday with a person
Your entered date is not stored and is compared with published person data under the same rules.
Compare two people
Choose two people to open their person comparison page.
Compare two dates
Compare two dates through the same factual axes and calculation rules.
| Axis | First date | Second date | Comparison | Method or source |
|---|---|---|---|---|
| Zodiac sign | Enter a date | Enter a date | Enter a date | M-ZODIAC |
| Traditional element | Enter a date | Enter a date | Enter a date | English Wikipedia: Astrology and the classical elements |
| Birth number | Enter a date | Enter a date | Enter a date | M-BIRTH-NUMBER |
| Weekday | Enter a date | Enter a date | Enter a date | M-WEEKDAY |
| Date gap | Enter a date | Enter a date | Enter a date | M-DATE-GAP |
| Birth color | Enter a date | Enter a date | Enter a date | DATA-BIRTH-COLOR-US |
Enter a date
Enter a valid YYYY-MM-DD or MM-DD date.
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Comparison table
Every row displays both inputs, the decision rule, and the matching or differing values.
What is shown
Entertainment reading, separate from the facts
The following panel is entertainment copy, separate from the factual comparison.
A shared traditional element can be a prompt to discuss the classification you have in common.
Different elements can be a heading for noticing differences, not a warning that conflict will occur.
Matching colors can become a playful shared palette for a card or small design.
A short gap or matching number is not evidence that a relationship will be successful, safe, or lasting.
Classification sources
The four-element grouping is attributed as a traditional Western astrological classification.
Each BirthDB calculation shows the input and public decision rule used to produce it.
Controls
Methods and sources
Calculation rules and directly consulted references are identified separately.
Methods: DATA-BIRTH-COLOR-US · EDITORIAL-C1 · M-BIRTH-NUMBER · M-DATE-GAP · M-LIFE-PATH · M-WEEKDAY · M-ZODIAC · POLICY-C1
Sources: English Wikipedia: Astrology and the classical elements