Sun Sign
Your core style and what helps you feel like yourself.
HomeWhat is a birth chart?
Deterministic chart math • AI explains the chart, not the astronomy
What is a birth chart?
A birth chart is a map of where the planets were when you were born. It helps you explore your patterns, strengths, and timing themes.
Last updated: 2026-02-23
Sun Sign
Your core style and what helps you feel like yourself.
Moon Sign
Your feelings, needs, and emotional rhythm.
Moon Sign
Your feelings, needs, and emotional rhythm.
Rising Sign
How you come across first and how you start things.
What's Included in Your Birth Chart
1
Tell Us When You Were Born
A short chat collects your birth date, time, and place.
2
We Calculate Your Unique Chart
We calculate your chart with deterministic astronomy data and your chosen house system.
3
Wake Up to Personalized Guidance
You get a calmer daily guide that shows what to lean into, what to delay, and why.
Trusted Accuracy
VSOP87
Verified astronomy model for planet positions
0.1°
Checked against trusted chart references
10
House system choices for different astrology styles
Deterministic chart math first. AI interpretation second.
VSOP87 Ephemeris
Trusted astronomy model for stable planet positions
10 House Systems
Choose the house system that fits your practice
See Your Chart
See the transits and chart context behind the guidance
Calm Guidance
Designed for specific, non-fear-based daily guidance
Frequently Asked Questions
What is a birth chart?
A birth chart is a map of where the planets were when you were born. It helps you explore your patterns, strengths, and timing themes.
What do I need to calculate my birth chart?
You need birth date, birth time, and birth place. If birth time is missing, you can still start, then refine later.
Why is birth time important?
Birth time helps calculate your Rising sign and houses. A small time change can shift those parts of the chart.
How accurate is this birth chart calculator?
We use verified chart calculations and compare outputs with trusted references for consistency.
What house system should I use?
Placidus is common and used by default. Whole Sign is also popular and simple to read. Try both and keep the one that reads best for you.
Related Guides
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It takes about 2 minutes. Start free and read your chart in simple language.
See My Free Chart