Zodiac Sign Calculator
Find your Western zodiac sun sign from your birth date, using the Sun's real position.
About the Zodiac Sign Calculator
Your sun sign is the 30° slice of the zodiac that the Sun was in when you were born. Published date ranges (Aries 21 March–19 April and so on) are averages: the Sun's entry into each sign shifts by up to a day from year to year, so this calculator uses the Sun's actual position (Meeus's solar formula, accurate to about a minute of time).
Astrology is a cultural tradition, not a science; there is no evidence that sun signs predict personality.
The formula
Sign = ⌊Sun's ecliptic longitude ÷ 30°⌋ (0 = Aries)
Usual date ranges
| Sign | Dates | Element |
|---|---|---|
| Aries | 21 Mar – 19 Apr | Fire |
| Taurus | 20 Apr – 20 May | Earth |
| Gemini | 21 May – 20 Jun | Air |
| Cancer | 21 Jun – 22 Jul | Water |
| Leo | 23 Jul – 22 Aug | Fire |
| Virgo | 23 Aug – 22 Sep | Earth |
| Libra | 23 Sep – 22 Oct | Air |
| Scorpio | 23 Oct – 21 Nov | Water |
| Sagittarius | 22 Nov – 21 Dec | Fire |
| Capricorn | 22 Dec – 19 Jan | Earth |
| Aquarius | 20 Jan – 18 Feb | Air |
| Pisces | 19 Feb – 20 Mar | Water |
Worked example
Example: Your sun sign = ♏ Scorpio
- Inputs: Date of birth: 2 November 1990; Time of birth (optional, hh:mm): 12:00; UTC offset at birth: -5 hours.
- Formula: Sign = ⌊Sun's ecliptic longitude ÷ 30°⌋ (0 = Aries)
- Result: Your sun sign = ♏ Scorpio
Questions people ask
I'm born on a cusp. Which sign am I?
Whichever sign the Sun was in at your birth minute; enter your time and UTC offset.
What about moon and rising signs?
Those need an ephemeris and your birth place; this tool gives the sun sign only.