Free tool
Rising sign calculator
Your rising sign (or Ascendant) is the sign that was climbing over the eastern horizon of your exact birthplace, at the exact minute you were born. It changes every two hours, so —unlike your Sun sign— you need your birth time to know it. Calculate yours for free: the full chart gives you the rising sign, its exact degree and the rest of your sky.
What the rising sign is
If the Sun says who you are in essence and the Moon how you feel, the rising sign describes how you appear: the first impression, the instinctive gesture, the door through which the world enters your chart. It also marks the start of the 1st House and orders all twelve houses.
Why you need the exact time
The horizon turns with the Earth: the rising sign advances a whole sign roughly every two hours. A few minutes can change it. That's why we ask for your time exactly as it appears on your birth certificate; without it your planets by sign are still reliable, but the rising sign and houses aren't.
How yours is computed
From your date, time and place we place the horizon using real ephemerides (VSOP87) and Placidus houses —the same method professional astrologers use— all in your browser, without your data ever leaving it.
Frequently asked questions
- Can I find my rising sign without a birth time?
- Not accurately: the rising sign changes every two hours, so without the exact time it can't be fixed. If you only know the day, you can still see your planets by sign, but not the rising sign or houses.
- What's the difference between Sun sign and rising sign?
- Your Sun sign is where the Sun was (your underlying identity); the rising sign is what was climbing over the horizon (how you present). They're almost always different.
- Are 'Ascendant' and 'rising sign' the same?
- Yes. They're two names for the same thing: the degree of the zodiac ascending in the east at the moment of birth.
- How often does the rising sign change?
- It moves through all twelve signs in about 24 hours, so it changes sign roughly every two hours.
- Is it free?
- Yes. The full calculation is free and happens in your browser; we don't store your birth data.
Rising sign calculator
Your rising sign (or Ascendant) is the sign that was climbing over the eastern horizon of your exact birthplace, at the exact minute you were born. It changes every two hours, so —unlike your Sun sign— you need your birth time to know it. Calculate yours for free: the full chart gives you the rising sign, its exact degree and the rest of your sky.
Calculate my rising sign ✶