Lunar Calendar Calculator
Calculate moon phases, lunar age, and approximate lunar calendar dates. Track the lunar cycle and tidal influences.
Gibbous-
Waning Gibbous
78.2% Illuminated
Lunar Age
19.33 days
Lunar Day
Day 20
Upcoming Moon Phases
Next New Moon4/17/2026 (11 days)
Next First Quarter18 days
Next Full Moon5/2/2026 (25 days)
Next Last Quarter3 days
Tidal Influence
Neap Tides (Moderate)
Spring tides occur during new and full moons when the Sun, Moon, and Earth align.