Instantly convert between solar (Gregorian) and lunar calendar dates.
The Solar (Gregorian) calendar is based on Earth's orbit around the Sun (365.25 days) and is used worldwide.
The Lunar (Lunisolar) calendar is based on the Moon's phases (29.5 days) and is traditionally used in East Asian countries like Korea, China, and Japan for festivals and birthdays.
The lunar calendar adds a leap month roughly every 3 years to stay aligned with the solar calendar. This tool supports conversions from 1900 to 2025.
Instantly convert solar (Gregorian) dates to lunar dates and vice versa. Supports 1900-2025.
Yes, 100% free. No signup required. All processing happens in your browser — no data is sent to any server.
Yes, all tools are fully responsive and work on smartphones, tablets, and desktops.