Moon Phase Calculator

Find the moon phase for any date. See the phase name, illumination percentage, and how many days until the next full or new moon.

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Waning Crescent

Day 25.1 of 29.5-day lunar cycle

Illumination

20.5%

Next Full Moon

19.2 days

Next New Moon

4.4 days

Lunar Phase Cycle

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NewWax Cres1st QtrWax GibFullWan GibLast QtrWan Cres

FAQ

Is Moon Phase Calculator free to use?

Yes, Moon Phase Calculator is completely free to use on UtilityCove.

Does Moon Phase Calculator upload my data?

No. Moon Phase Calculator runs in your browser, so your input stays on your device.

Can I use Moon Phase Calculator on mobile?

Yes. Moon Phase Calculator works on modern mobile and desktop browsers.