Lunar Calendar Calculator
Calculate moon phases, lunar age, and approximate lunar calendar dates. Track the lunar cycle and tidal influences.
Gibbous+
Waxing Gibbous
87.7% Illuminated
Lunar Age
11.39 days
Lunar Day
Day 12
Upcoming Moon Phases
Next New Moon2/17/2026 (19 days)
Next First Quarter26 days
Next Full Moon2/2/2026 (4 days)
Next Last Quarter11 days
Tidal Influence
Neap Tides (Moderate)
Spring tides occur during new and full moons when the Sun, Moon, and Earth align.