What does this calculator do?

An astrology compatibility calculator compares two natal charts and identifies inter-chart aspects. It can show conjunctions, oppositions, trines, squares, sextiles and other supported contacts with their exact orbs.

This page separates astronomical or arithmetic calculation from interpretation. It reports only values supported by the supplied data and the selected calculation method. Missing information is shown as unavailable rather than replaced with a guessed value.

Results included

• Inter-chart planetary aspects
• Aspect type and orb
• Supported angle contacts when times are known
• Technical compatibility factors
• Data completeness warnings

How to read the technical result

Check the sign or number first, then review exact degrees, houses, aspects, or reduction steps where they apply. A complete result should identify the input data, calculation system and any limitations. These details make the result reproducible and easier to compare with other professional tools.

Accuracy and data limitations

If either birth time is unknown, Ascendant, house overlays and angle contacts must be excluded or marked unavailable. Names, dates, local times and locations should be entered carefully. A technically correct calculator cannot recover information that was not supplied, and Moodfex does not manufacture missing birth data.