Lunar Calendar Converter

Convert between lunar and solar dates

Solar โ†’ Lunar
Lunar โ†’ Solar
FAQ
What is the difference between lunar and solar calendars?
The solar (Gregorian) calendar follows the sun; the lunar calendar follows the moon's phases. In Korea and East Asia, holidays like Seollal and Chuseok, ancestral rites, and elders' birthdays use the lunar calendar.
What is a leap month?
A lunar year is about 354 days, so an extra month is inserted every 2-3 years to stay aligned with the seasons. That repeated month is the leap month.
What date range is supported?
Conversions are accurate from 1900 to 2100, based on verified astronomical data.
Does it show the sexagenary cycle (GanZhi)?
Yes. The result includes the year's GanZhi designation used in East Asian calendars.
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About the Lunar Calendar Converter

The lunar-solar calendar converter changes Gregorian dates to lunar dates and vice versa. Useful for lunar birthdays, memorial dates, and East Asian holidays like Seollal and Chuseok.

Key Features

Accurate astronomical-data-based conversion, computed instantly in your browser.

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