Astrology calculators
By using our calculators, you agree to our Terms of Use.
Western tropical astrology tools for curiosity: find your sun sign with element and modality, compare sign compatibility, check mercury retrograde dates, estimate moon and rising signs from birth time and place, and explore simplified synastry. Entertainment only — not scientific or medical advice.
7 tools in this section
Zodiac Sign
Find your tropical sun sign from your birth date — element, modality, and cusp notes included.
Zodiac Compatibility
Compare two sun signs for traditional element harmony — entertainment only, not relationship advice.
Mercury Retrograde
Check whether Mercury is retrograde on a given date — approximate ranges through 2028.
Moon Sign
Estimate your moon sign from birth date, time, and location using ephemeris calculations.
Rising Sign
Find your rising sign (ascendant) from birth date, time, and birthplace coordinates.
Big Three
See your sun, moon, and rising signs together from birth date, time, and place.
Synastry Compatibility
Simple synastry from two birth dates — sun-sign harmony score for entertainment only.