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Free composite chart calculator.
Reviewed by Dr. L. Nageshwwar Rao, PhD (Astrology), Consulting Astrologer · Last reviewed 5 August 2026 · How we compute this
Free composite chart calculator. Find the halfway point between each planet's positions in two birth charts. See signs, exact positions and contacts.
Add the first person's birth date, time and place.
Add the second person's birth date, time and place.
Find each planet's halfway point between the two charts.
See signs and exact positions for all ten halfway points.
A composite chart combines two birth charts using each planet's halfway position. This tool shows ten halfway points, from Sun to Pluto. Western astrologers read it as the pair's chart.
The calculation methods disagree and give different answers. This tool leaves those parts out. It shows the planet halfway positions that the methods agree on.
One row per planet, from Sun to Pluto, with its Western sign and exact position. Each position sits halfway between that planet's positions in the two birth charts.
Synastry compares contacts between two separate charts. A composite combines them through halfway planet positions. This page shows the composite first and the contacts below it.
No. The tool calculates halfway positions and contacts. A personal reading explains their meaning for the pair.
Vedic astrology does not use this halfway-point chart. Its standard match tool is Gun Milan, which scores two charts out of 36. Use our Kundli Milan calculator for that method.
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