🌕Astronomy, Sun & Moon
Moon Phase Calculator — Free Online
Shows the current moon phase and calculates the moon phase for any date.
How to Use the Moon Phase Calculator
- Enter your input values using the fields in the calculator above
- Select any additional options (units, format, timezone) if applicable
- Click the Calculate button to get your instant result
- Copy the result using the Copy button for use elsewhere
- Scroll down for real-world examples and explanations
About the Moon Phase Calculator
Shows the current moon phase and calculates the moon phase for any date. This tool uses the proleptic Gregorian calendar and the IANA timezone database for accurate results across all dates, timezones, and leap years.
All formulas validated by Vipul Jaganiya, Computer Science expert in Calendar Mathematics and Timezone Engineering.