Moon Phase Finder

Moon phase and illumination for any date — new, crescent, quarter, gibbous, full.

Date:

How to use

Pick a date, then click Find.

How accurate is it?

The synodic-month math is accurate to about a day — plenty for planning skywatching or photography.

When is the next full moon?

Pick today's date to see the current phase, then step forward to find the next full moon.

☕

Every tool runs 100% in your browser — no uploads, no signups. If a tool saved you time, consider supporting us with a small donation.