Moon Phase Calculator
Calculate the moon phase for any date. Find illumination percentage, phase name, and upcoming lunar events.
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About Lunar Phases
The lunar cycle lasts approximately 29.53 days. The moon goes through 8 distinct phases as it orbits Earth, affecting tides, wildlife behavior, and has been used for calendars throughout history.
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Waxing Gibbous
More than half of the moon is illuminated and still growing.
Moon Details
88.4%
Illumination
Day 11.50
Of Lunar Cycle
38.9%
Cycle Progress
Waxing
Moon Direction
Upcoming Phases
🌑 New Moonin 18.0 days
🌓 First Quarterin 25.4 days
🌕 Full Moonin 3.3 days
🌗 Last Quarterin 10.7 days
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.