Moon Phase Calculator

Free online moon phase calculator. See the current moon phase, illumination, and dates of upcoming new and full moons.

How to use the Moon Phase Calculator

  1. Open the Moon Phase Calculator — it loads instantly in your browser, with no sign-up or install.
  2. Enter your input by typing, pasting or uploading as the tool requires; results update automatically.
  3. Copy or download the result. Nothing you enter leaves your device.

Frequently asked questions

Is the Moon Phase Calculator free?

Yes. The Moon Phase Calculator on UtilitySuite is completely free, with no account, sign-up or payment required.

Do I need to create an account?

No. Every UtilitySuite tool and game works instantly with no login or registration.

Does my data stay private?

Yes. The Moon Phase Calculator runs entirely in your browser — the text, numbers or files you enter are never uploaded to a server.

Can I see past or future moon phases?

Yes — view the current phase and illumination, plus the dates of upcoming new and full moons.

Related time & date

Browse all free online tools or play free browser games on UtilitySuite.

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Moon Phase Calculator
Date:
Current Phase
—
—
Lunar Data
0%
Illuminated
0
Moon Age (days)
0%
Cycle Progress
Upcoming Events
🌑 Next New Moon—
🌓 Next First Quarter—
🌕 Next Full Moon—
🌗 Next Last Quarter—
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