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What this calculator compares
Day Masters: how the two central elements support or restrain each other
Stem combinations: the five traditional pairs, such as 甲己
Day branches: traditionally linked to close partnership
Year branches: the zodiac-animal comparison most people know
Element balance: where one chart supplies what the other lacks
How to read the result
Treat each line as a prompt for conversation. A Clash may show up as friction, or as the movement that keeps a relationship alive. A Harmony may feel easy, or become complacent. Read more in the BaZi compatibility guide.
Frequently asked questions
Is this BaZi compatibility calculator free?
Yes. There is no account or payment, and both people's birth details stay in your browser.
Why doesn't it give a compatibility score?
A single number hides what matters. This tool shows the specific relationships between two charts so you can see where support and friction may appear.
Can I use it for friends, family, or colleagues?
Yes. The same relationships between Day Masters, elements, and branches can be read for any two people.
Do both people need exact birth times?
No. The comparison uses Day Masters and day and year branches, which usually don't need a birth time. Births close to midnight are the exception.
Daoly presents BaZi and the I Ching as cultural traditions and tools for self-reflection. Nothing here is a prediction or medical, legal, financial, or psychological advice.
