Natal Chart
Calculate Birth Chart
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A birth chart is a mathematical snapshot of the sky at the moment and place you were born: the zodiac and house positions of the Sun, Moon and planets, and the aspects between them. Maxis computes every position with the Swiss Ephemeris to arc-minute precision and draws the chart in four visual styles.
The sky at birth: wheel plus 90°/45° dial views.
For those who want to understand themselves and their personal chart in depth.
Date, time, place
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Frequently Asked Questions
What is a birth chart? ›
It is a map of the sky at the moment of birth, showing where each planet sat by sign and house and the aspects between them. In astrology it serves as the core reference for personality, potential and life areas.
Can I calculate a chart without my birth time? ›
Yes; planetary sign positions and most aspects are accurate without a time. The Ascendant and house placements, however, depend on the clock — without a time that layer is unreliable, and the Moon can shift by a few degrees.
Why does the rising sign matter so much? ›
The Ascendant is the sign rising on the eastern horizon at birth, and it anchors the entire house wheel. It is associated with appearance, first impressions and one’s approach to life; even four minutes of clock time can move the degree.
How precise are the calculations? ›
All positions come from the Swiss Ephemeris — the same engine professional astrology software uses — at arc-minute precision, with historical timezone and daylight-saving rules applied automatically for the birth place.
Save Your Chart
Save your birth details once and reuse them across every tool.