Moon Phase Calculator
Calculate the moon phase for any date. Shows phase name, illumination percentage, moon age, and dates of next full and new moons.
How to Use Moon Phase Calculator
The Moon Phase Calculator determines the lunar phase for any date you select. Enter a date and see the current moon phase (New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, or Waning Crescent), illumination percentage, moon age in days, and the dates of the next full moon and new moon. Based on the synodic month calculation (29.53 days). Useful for astronomers, photographers planning moonlit shoots, gardeners following lunar cycles, and anyone curious about the moon.
Step-by-Step Instructions
- Select a date using the date picker
- Click Calculate Moon Phase
- View the phase name, emoji, and illumination percentage
- See moon age and upcoming full/new moon dates
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