Astrology Calculator Hub: Every Chart Tool in One Place.
Calculate your sun, moon and rising sign, planet positions, Vedic rashi and nakshatra, moon phase, retrograde planets, planetary hours and sign compatibility. Pick a tool, enter your details once, and the other tools reuse them.
Sun Sign Calculator
Sun sign, element, modality, ruling planet
Use tool →Moon Sign Calculator
Moon sign and ingress window
Use tool →Rising Sign (Ascendant) Calculator
Ascendant, Midheaven
Use tool →Birth Chart Planet Positions
Planet table, houses, balance
Use tool →Vedic Rashi & Nakshatra Calculator
Rashi, nakshatra, pada, Lagna
Use tool →Zodiac Compatibility Calculator
Score, aspect, element match
Use tool →Chinese Zodiac Calculator
Animal, element, yin/yang
Use tool →Moon Phase Calculator
Phase, illumination, next phases
Use tool →Retrograde Planet Checker
Status, last & next station
Use tool →Planetary Hours Calculator
Day ruler and 24 hourly rulers
Use tool →Sun Sign Calculator
Find your zodiac sun sign from your birth date, with exact degree and cusp check.
Moon Sign Calculator
Calculate your Moon sign and the exact hours the Moon stayed in it on your birth day.
Rising Sign (Ascendant) Calculator
Get your Ascendant and Midheaven from birth time and place.
Birth Chart Planet Positions
Sun to Neptune in sign and degree, retrograde flags, whole-sign houses and element balance.
Vedic Rashi & Nakshatra Calculator
Sidereal (Lahiri) Moon rashi, nakshatra, pada and Lagna.
Zodiac Compatibility Calculator
Compare two sun signs using traditional aspect and element rules.
Chinese Zodiac Calculator
Find your Chinese zodiac animal and element, adjusted for Lunar New Year.
Moon Phase Calculator
Moon phase, illumination and next new/full moon for any date and time.
Retrograde Planet Checker
Is Mercury retrograde? See every planet’s direction with station dates.
Planetary Hours Calculator
Planetary hours for any day and place, from local sunrise and sunset.
Western zodiac signs: dates, element and modality
Approximate tropical sun sign dates. Exact change-over times shift by a few hours each year, so use the Sun Sign Calculator if you were born on a cusp.
| Sign | Dates | Element · Modality |
|---|---|---|
| Aries | Mar 21 – Apr 19 | Fire · Cardinal |
| Taurus | Apr 20 – May 20 | Earth · Fixed |
| Gemini | May 21 – Jun 20 | Air · Mutable |
| Cancer | Jun 21 – Jul 22 | Water · Cardinal |
| Leo | Jul 23 – Aug 22 | Fire · Fixed |
| Virgo | Aug 23 – Sep 22 | Earth · Mutable |
| Libra | Sep 23 – Oct 22 | Air · Cardinal |
| Scorpio | Oct 23 – Nov 21 | Water · Fixed |
| Sagittarius | Nov 22 – Dec 21 | Fire · Mutable |
| Capricorn | Dec 22 – Jan 19 | Earth · Cardinal |
| Aquarius | Jan 20 – Feb 18 | Air · Fixed |
| Pisces | Feb 19 – Mar 20 | Water · Mutable |
Which astrology calculator should you use?
- I only know my birthday → Sun Sign, Chinese Zodiac
- I know my birth time → Moon Sign, Rising Sign
- I want the full chart → Birth Chart Planets
- I follow Jyotish → Rashi & Nakshatra
- Is it a good time now? → Retrogrades, Moon Phase, Planetary Hours
- Me and someone else → Compatibility
How these calculators work
Planet positions come from published orbital-element and lunar series, converted to ecliptic longitude for the tropical zodiac. The Ascendant and Midheaven use local sidereal time, your latitude and the obliquity of the ecliptic. Houses use the whole-sign system. Vedic results subtract the Lahiri ayanamsa from the tropical longitude. Planetary hours divide the real daylight and night length, from NOAA-style sunrise and sunset formulas, into twelve parts each.
Limits: enter the UTC offset that applied at your birth, including daylight saving time. Ascendant results are unreliable above about 66° latitude. Pluto and the lunar nodes are not included. Interpretations are traditional and for reflection and entertainment, not for medical, legal or financial decisions.
Astrology calculator FAQs
How accurate are these astrology calculators?
Sun and Moon positions are calculated to about 0.01–0.05°, and planets typically to well under half a degree, using published astronomical series. Results are only as good as your birth time, location and UTC offset. If a planet sits within a fraction of a degree of a sign boundary, confirm it with a professional ephemeris.
What is the difference between sun, moon and rising sign?
Your sun sign is the zodiac sign the Sun occupied at birth and describes core identity. The moon sign describes emotional style and needs. The rising sign (Ascendant) is the sign on the eastern horizon at your birth time and describes outward manner; it needs an exact birth time and place.
Do I need my birth time?
Not for the sun sign, Chinese zodiac or moon phase. The moon sign usually needs a time, because the Moon changes sign every 2–3 days. The rising sign, Midheaven, houses and Vedic Lagna all require birth time and location.
Why is my Vedic (sidereal) sign different from my western sign?
Western astrology uses the tropical zodiac tied to the seasons; Vedic astrology uses the sidereal zodiac tied to the stars. The gap, the ayanamsa, is about 24° today (Lahiri), so many people’s Vedic sign is the one before their western sign.
Is Mercury retrograde real?
Retrograde motion is an optical effect: as Earth passes or is passed by another planet, that planet appears to move backwards against the stars for a few weeks. The dates are astronomical fact; the meanings assigned to them are astrological tradition.
Is astrology scientifically proven?
No. Astrology is a symbolic and cultural tradition, and studies have not shown that it predicts personality or events. These tools calculate real astronomical positions; the interpretations are traditional and offered for reflection and entertainment.
Is my birth data stored?
The calculations run in your browser and the details you type into these tools are not sent anywhere by this page.
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