Birth chart calculator
A birth chart is a map of the sky at the moment and place you were born. Enter your details to see the wheel, the sign and house of each planet, and the main aspects between them.
Keep your chart with you
The Skyplot app for Android does everything on this page, and goes further:
In the free app
- Your chart saved on your phone: open it any time, even offline
- A personal sky note every day
- Today's Moon on your home screen (widget)
- Compatibility with a friend, plus an invite link
- Birth time sensitivity: what changes if your time is off
With Skyplot Pro Pro
- 12-month personal sky calendar
- Personal transit notifications (off by default)
- Add personal transits to your calendar
- Unlimited people and the full synastry aspect list
- Chart printout (PDF)
- Solar return chart
- Extra house systems: Whole Sign, Equal, Koch, Porphyry
One-time payment. No subscription.
Get Skyplot on Google PlayNo account. Your birth details stay on your phone.
How the wheel works
The outer ring shows the twelve signs. The inner lines divide the chart into twelve houses, starting at the rising sign (AC) on the left; MC marks the highest point. Lines across the middle are aspects between planets.
House system
Houses are calculated with the Placidus system. Above the polar circles Placidus is not defined, so Porphyry is used and noted under the wheel.
More tools
- How compatible are we? — compatibility by birth dateCompare two birth dates: a score, five areas, similarities and differences.
- Big 3 calculator: Sun, Moon and rising signSun, Moon and rising sign, plus the Moon phase on the night you were born.
- Venus and Mars sign calculatorWhich signs Venus and Mars were in when you were born.