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Zodiac compatibility calculator

Scores two sun signs by zodiac distance, element, and modality with a transparent points table, percentage band, and a full twelve-sign chart.

Pick two signs or two birth dates to score the pairing.

This score is astrology tradition, not science. The point weights are a fixed encoding of textbook rules: distance between the two signs (up to 30), element pairing (up to 30, with fire-air and earth-water as the complementary pairs), and modality pairing (up to 20). Every point is shown, nothing is hidden inside a percentage, and the same weights produce the full twelve-sign chart and the CSV.
Options

More sun & moon tools

- Moon phase (/sky/moon-phase)
- Mercury retrograde calendar (/sky/mercury-retrograde-calculator)
- Sunrise & sunset (/sky/sunrise-sunset)
All sun & moon tools (/sky)

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Canonical HTML: https://nutter.tools/sky/zodiac-compatibility-calculator
Markdown version: https://nutter.tools/sky/zodiac-compatibility-calculator.md
Plain-text version: https://nutter.tools/sky/zodiac-compatibility-calculator.txt
Agent index: https://nutter.tools/llms.txt