Find the moon phase for any date. Calculate illumination percentage, moon age, and upcoming lunar phases.
Select Date
🌓
First Quarter
Right half illuminated. Decision time.
Illumination
58%
Moon Age
8.1
days into cycle
Next Phase
🌔 Waxing Gibbous
in 3.0 days
Spiritual / Astrological Energy
Decision making, action, challenges
8 Lunar Phases — Overview
🌑
New Moon
Day 0–2
🌒
Waxing Crescent
Day 2–7
🌓
First Quarter
Day 7–11
🌔
Waxing Gibbous
Day 11–15
🌕
Full Moon
Day 15–18
🌖
Waning Gibbous
Day 18–22
🌗
Last Quarter
Day 22–26
🌘
Waning Crescent
Day 26–30
Upcoming Phase Transitions
| Phase | Approximate Date | Illumination |
|---|---|---|
🌓 First Quarter | Oct 20, 2026 | 55% |
🌔 Waxing Gibbous | Oct 22, 2026 | 89% |
🌕 Full Moon | Oct 26, 2026 | 100% |
🌖 Waning Gibbous | Oct 30, 2026 | 82% |
🌗 Last Quarter | Nov 3, 2026 | 45% |
🌘 Waning Crescent | Nov 6, 2026 | 11% |
🌑 New Moon | Nov 10, 2026 | 0% |
🌒 Waxing Crescent | Nov 12, 2026 | 6% |
The Moon completes one orbit around Earth in approximately 29.53 days — the synodic month. During this cycle, it passes through 8 distinct phases based on how much of its illuminated side faces Earth. The New Moon occurs when the Moon is between Earth and the Sun (invisible). As it moves, we see a Waxing Crescent, then First Quarter (half lit), Waxing Gibbous, Full Moon (fully lit), Waning Gibbous, Last Quarter, and finally Waning Crescent before returning to New Moon. The exact phases depend on the Moon's orbital position. Our calculator uses a known new moon reference point (January 6, 2000) and the precise 29.53-day cycle to calculate the phase for any date. Illumination is calculated using a cosine approximation of the angular relationship between Earth, Moon, and Sun.