Buddhist Calendar Converter

Convert any date between the Gregorian calendar and the Buddhist Era (BE) calendar. Enter an input date, choose your Buddhist calendar tradition (Thai/Lao/Cambodian +543, Myanmar/Sri Lankan +544), and select your conversion direction — you'll get the converted Buddhist year, the era difference, and the full converted date displayed clearly.

Thai, Lao and Cambodian systems add 543 years; Myanmar and Sri Lanka add 544 years.

Enter the date you want to convert.

If you only need year conversion, enter a year here. This overrides the date field's year.

Results

Converted Year

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Input Year

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Era Difference

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Current BE Year (Today)

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Converted Full Date

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Calendar Tradition

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Frequently Asked Questions

What is the Buddhist Era (BE) calendar?

The Buddhist Era calendar counts years from the parinirvana (passing) of the Buddha Gautama. The Thai, Lao, and Cambodian traditions place this event in 543 BCE, making their BE year 543 years ahead of the Gregorian calendar. Myanmar and Sri Lanka use 544 BCE as the starting point, so their BE year is 544 years ahead of Gregorian.

What is the difference between Thai/Cambodian and Myanmar/Sri Lankan Buddhist calendars?

Thai, Lao, and Cambodian systems add 543 years to the Gregorian year (so 2025 CE = 2568 BE). Myanmar and Sri Lanka add 544 years (so 2025 CE = 2569 BE). This one-year difference comes from whether the Buddha's passing is counted as year 0 or year 1 of the Buddhist Era.

Is the 543-year (or 544-year) difference always exact?

For year-to-year conversions it is consistent, but the Buddhist calendar is technically a lunisolar system, meaning months don't always align exactly with Gregorian months. For precise festival or lunar date calculations, additional lunar calendar data may be needed. For general year conversions, the fixed offset is reliable.

What does 'Gregorian to Buddhist Era' conversion mean?

It means you enter a standard Western calendar year or date (e.g. 2025 CE) and the tool outputs the equivalent Buddhist Era year (e.g. 2568 BE for the Thai tradition). The reverse conversion lets you input a BE year and get the Gregorian equivalent.

Who typically uses the Buddhist calendar?

The Buddhist calendar is used officially or culturally in Thailand, Laos, Cambodia, Myanmar, and Sri Lanka. It appears on Thai banknotes, official documents, and is used to calculate Buddhist holidays such as Vesak and Vassa. Researchers, travelers, historians, and anyone dealing with Southeast Asian documents may need to convert between the two systems.

What about festivals or lunar-based dates?

Traditional Buddhist festivals such as Vesak and Asalha Puja follow the lunar calendar and can fall on different Gregorian dates each year. This converter handles the solar year offset (543 or 544 years), but for exact lunar festival dates you would need a full lunisolar calculation tool.

What is today's current Buddhist Era year?

As of 2025 CE, the current Buddhist Era year is 2568 BE in the Thai/Lao/Cambodian tradition and 2569 BE in the Myanmar/Sri Lankan tradition. This tool always shows the current BE year alongside your conversion result for quick reference.

Can I convert a full date or just a year?

Both options are available. You can select a full date using the date picker to see the complete converted date, or simply enter a year number in the 'Year Only' field for a quick year-to-year conversion. If you provide both, the year field takes priority for the year calculation.

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