Buddhist Era (พ.ศ.) Converter
Free Buddhist Era (พ.ศ.) to Gregorian (ค.ศ./CE) year converter. Convert Thai Buddhist years and full dates to AD and back — exactly 543 years apart, with a
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How to Convert Buddhist Era and Gregorian Years
- Choose the direction: Pick BE → CE or CE → BE from the toggle, or press Swap to flip the current conversion and clear the input.
- Enter a year or full date: Type a year like 2569 or a full date like 2569-08-18 — both results update as you type.
- Read both eras: The result card shows the Buddhist Era and Gregorian values side by side, including the day and month when you entered a full date.
- Copy or cross-check: Press Copy to grab the result, compare it against the Today card or the quick reference table, and remember the offset is always exactly 543 years.
Key Features
- Converts both plain years (2569) and full dates (2569-08-18) between BE and CE
- Bidirectional with one-click Swap button — no re-typing when you pick the wrong era
- Shows today’s date in both eras as a live reference point
- Quick reference table of 16 CE ↔ BE year pairs with the current year highlighted
- Validates real calendar dates including leap-day (Feb 29) handling
- Runs 100% client-side — your input never leaves the browser
Frequently Asked Questions
What is the difference between BE and CE years?
The Buddhist Era runs exactly 543 years ahead of the Gregorian calendar, so CE 2026 is BE 2569 — add 543 going to BE, subtract 543 going to CE.
Can I convert full dates, not just years?
Yes — enter 2569 or a full date like 2569-08-18 and both results keep the day and month. Dates are validated, so 30 February is rejected and Feb 29 only appears in leap years.
Why does the tool mention the year 1941?
Before 1941 the Thai Buddhist Era new year began on April 1, not January 1. This converter uses the modern January 1 convention that applies to all dates after that change.
Is there a quick way to check nearby years?
Yes — the quick reference table lists the current Gregorian year minus 5 to plus 10 with their BE equivalents, and the Today card shows the current date in both eras. Everything runs in your browser.