Lunar Phase (detailed)
Calculate Lunar Phase (detailed) instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Lunar Phase (detailed)
Year
Mo
Day
Moon age, days
21.5327
More about: Lunar Phase (detailed)
What it calculates
The “Lunar Phase (detailed)” calculator computes Moon age, days from 3 parameters: year, mo, day.
A handy everyday calculator for daily tasks.
Example calculation
With parameters Year = 2,026, Mo = 5, Day = 8 the result is 21.53.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.