Moon Phase Finder
Find the approximate moon phase for any date, from new moon to full moon.
Frequently asked questions
Is this tool free?
Yes. Calchemy tools are free to use in your browser.
Is my data uploaded?
No. The tools are designed to run locally in your browser unless clearly stated otherwise.
How accurate is this?
It's an approximation based on the average length of a lunar month, accurate to within about a day. For precise astronomical data, use a dedicated almanac.
What's the best moon phase for brewing a potion?
Tradition says a full moon for maximum potency, but we take no responsibility for the results.