Moon Phase Calculator
Determine the exact Moon phase, illumination percentage, lunar age, and waxing/waning status for any date.
The Moon phase indicates the illuminated fraction of the Moon visible from Earth, determined by the relative geometric positions of Earth, Moon, and Sun.
How It Works
Select Date
Choose any birth date or target celebration date.
Compute Solar & Lunar Elongation
The angular separation between Sun and Moon is calculated.
Display Phase & Illumination
See phase name (e.g. Full Moon, Waxing Crescent) and exact percentage.
The Astronomical & Energetic Rhythms of Lunar Phases
The synodic lunar month averages 29.53 days. In astrology, people born during a Waxing Moon tend to be growth-oriented, while those born during a Waning Moon possess reflective wisdom.
Frequently Asked Questions
Calculations are provided for traditional, educational, and cultural exploration purposes. Astrology and numerology insights do not constitute medical, legal, financial, or guaranteed predictive outcomes.