What does this calculator do?

A Moon sign calculator determines where the Moon was located in the zodiac when you were born. Because the Moon moves quickly, the birth date is essential and the birth time may be necessary on days when the Moon changes signs.

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

• Moon sign
• Exact zodiac degree
• House placement when time is known
• Major lunar aspects
• Boundary-day uncertainty notice when applicable

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 the Moon changed signs on your birth date, an unknown time can make the sign uncertain. The result must show that uncertainty rather than inventing a time. 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.