iHow it is calculated
Each sign covers a range of dates. The calculator matches your day and month to the corresponding sign:
Someone born on 15 August falls in 23 July–22 August, so they are a Leo ♌, a Fire sign.
Enter your birth date and find your zodiac sign, its range and the element it belongs to, among the 12 western signs.
Enter the birth date
Enter the day and month of birth to find the zodiac sign and its element.
The signs are tropical (western), as used in everyday horoscopes. Boundary dates can vary by a day from year to year.
Aug 15 → Leo ♌Handy everyday tools. Simple, fast calculations for common situations. Everything runs instantly in your browser, no account, no data sent.
Each sign covers a range of dates. The calculator matches your day and month to the corresponding sign:
Someone born on 15 August falls in 23 July–22 August, so they are a Leo ♌, a Fire sign.
Enter the day and month of birth and the calculator tells you the sign. For example, someone born on 15 August is a Leo, and on 15 November a Scorpio.
Aries (21 Mar–19 Apr), Taurus (20 Apr–20 May), Gemini (21 May–20 Jun), Cancer (21 Jun–22 Jul), Leo (23 Jul–22 Aug), Virgo (23 Aug–22 Sep), Libra (23 Sep–22 Oct), Scorpio (23 Oct–21 Nov), Sagittarius (22 Nov–21 Dec), Capricorn (22 Dec–19 Jan), Aquarius (20 Jan–18 Feb), Pisces (19 Feb–20 Mar).
The 12 signs split into four elements: Fire (Aries, Leo, Sagittarius), Earth (Taurus, Virgo, Capricorn), Air (Gemini, Libra, Aquarius) and Water (Cancer, Scorpio, Pisces).
If you were born right at the boundary between two signs (for example 22–23 August), you are said to be “on the cusp”. Boundary dates can vary by a day depending on the year and time.
The sun sign (the usual one) depends only on the birth date. The ascendant depends on the time and place of birth and is calculated separately, in a full birth chart.
The western zodiac is based on the month of birth (12 signs). The Chinese one is based on the year of birth, with 12 animals repeating every 12 years.
Almost. The boundaries between signs can fall a day earlier or later depending on the year, because the Sun does not enter a sign at exactly the same time each year.
In popular astrology, signs of the same element are considered compatible, as are some Fire–Air and Earth–Water combinations. It is a symbolic interpretation, though, not a scientific one.