Thai Buddhist Era (BE) ⇄ CE converter

Convert a year

Other eras (RS, CS, MS)

BE 2569 = 2026 CE. Enter a year and pick its era, or pick a date to see its BE date, weekday and reign.

Convert a date (CE → BE)

Conversion formulas

BE = CE + 543 and CE = BE − 543. Example: 2026 + 543 = BE 2569.

EraFrom CEFrom BE2026 CE is
BE (Buddhist Era)CE (Gregorian) + 543—2569
RS (Rattanakosin Era)CE (Gregorian) − 1781BE (Buddhist Era) − 2324245
CS (Chula Sakarat)CE (Gregorian) − 638BE (Buddhist Era) − 11811388
MS (Maha Sakarat)CE (Gregorian) − 78BE (Buddhist Era) − 6211948

Thai New Year before 1941

From 1889 to 1940 the official Thai year began on April 1; since BE 2484 (1941) it begins on January 1. Old documents dated January–March therefore show a BE number one lower than the modern count. The date converter above flags these cases.

Reigns of the Chakri dynasty

ReignPeriod
Rama 1April 6, 1782 – September 7, 1809
Rama 2September 7, 1809 – July 21, 1824
Rama 3July 21, 1824 – April 2, 1851
Rama 4April 2, 1851 – October 1, 1868
Rama 5October 1, 1868 – October 23, 1910
Rama 6October 23, 1910 – November 26, 1925
Rama 7November 26, 1925 – March 2, 1935
Rama 8March 2, 1935 – June 9, 1946
Rama 9June 9, 1946 – October 13, 2016
Rama 10October 13, 2016 – present

BE / CE chart with ages

BECEAge in 2026Zodiac
25722029—Rooster (Pi Raka)
25712028—Monkey (Pi Wok)
25702027—Goat (Pi Mamae)
256920260Horse (Pi Mamia)
256820251Snake (Pi Maseng)
256720242Dragon (Pi Marong)
256620233Rabbit (Pi Tho)
256520224Tiger (Pi Khan)
256420215Ox (Pi Chalu)
256320206Rat (Pi Chuat)
256220197Pig (Pi Kun)
256120188Dog (Pi Cho)
256020179Rooster (Pi Raka)
2559201610Monkey (Pi Wok)
2558201511Goat (Pi Mamae)
2557201412Horse (Pi Mamia)
2556201313Snake (Pi Maseng)
2555201214Dragon (Pi Marong)
2554201115Rabbit (Pi Tho)
2553201016Tiger (Pi Khan)
2552200917Ox (Pi Chalu)
2551200818Rat (Pi Chuat)
2550200719Pig (Pi Kun)
2549200620Dog (Pi Cho)
Show all (110)
BECEAge in 2026Zodiac
2548200521Rooster (Pi Raka)
2547200422Monkey (Pi Wok)
2546200323Goat (Pi Mamae)
2545200224Horse (Pi Mamia)
2544200125Snake (Pi Maseng)
2543200026Dragon (Pi Marong)
2542199927Rabbit (Pi Tho)
2541199828Tiger (Pi Khan)
2540199729Ox (Pi Chalu)
2539199630Rat (Pi Chuat)
2538199531Pig (Pi Kun)
2537199432Dog (Pi Cho)
2536199333Rooster (Pi Raka)
2535199234Monkey (Pi Wok)
2534199135Goat (Pi Mamae)
2533199036Horse (Pi Mamia)
2532198937Snake (Pi Maseng)
2531198838Dragon (Pi Marong)
2530198739Rabbit (Pi Tho)
2529198640Tiger (Pi Khan)
2528198541Ox (Pi Chalu)
2527198442Rat (Pi Chuat)
2526198343Pig (Pi Kun)
2525198244Dog (Pi Cho)
2524198145Rooster (Pi Raka)
2523198046Monkey (Pi Wok)
2522197947Goat (Pi Mamae)
2521197848Horse (Pi Mamia)
2520197749Snake (Pi Maseng)
2519197650Dragon (Pi Marong)
2518197551Rabbit (Pi Tho)
2517197452Tiger (Pi Khan)
2516197353Ox (Pi Chalu)
2515197254Rat (Pi Chuat)
2514197155Pig (Pi Kun)
2513197056Dog (Pi Cho)
2512196957Rooster (Pi Raka)
2511196858Monkey (Pi Wok)
2510196759Goat (Pi Mamae)
2509196660Horse (Pi Mamia)
2508196561Snake (Pi Maseng)
2507196462Dragon (Pi Marong)
2506196363Rabbit (Pi Tho)
2505196264Tiger (Pi Khan)
2504196165Ox (Pi Chalu)
2503196066Rat (Pi Chuat)
2502195967Pig (Pi Kun)
2501195868Dog (Pi Cho)
2500195769Rooster (Pi Raka)
2499195670Monkey (Pi Wok)
2498195571Goat (Pi Mamae)
2497195472Horse (Pi Mamia)
2496195373Snake (Pi Maseng)
2495195274Dragon (Pi Marong)
2494195175Rabbit (Pi Tho)
2493195076Tiger (Pi Khan)
2492194977Ox (Pi Chalu)
2491194878Rat (Pi Chuat)
2490194779Pig (Pi Kun)
2489194680Dog (Pi Cho)
2488194581Rooster (Pi Raka)
2487194482Monkey (Pi Wok)
2486194383Goat (Pi Mamae)
2485194284Horse (Pi Mamia)
2484194185Snake (Pi Maseng)
2483194086Dragon (Pi Marong)
2482193987Rabbit (Pi Tho)
2481193888Tiger (Pi Khan)
2480193789Ox (Pi Chalu)
2479193690Rat (Pi Chuat)
2478193591Pig (Pi Kun)
2477193492Dog (Pi Cho)
2476193393Rooster (Pi Raka)
2475193294Monkey (Pi Wok)
2474193195Goat (Pi Mamae)
2473193096Horse (Pi Mamia)
2472192997Snake (Pi Maseng)
2471192898Dragon (Pi Marong)
2470192799Rabbit (Pi Tho)
24691926100Tiger (Pi Khan)
24681925101Ox (Pi Chalu)
24671924102Rat (Pi Chuat)
24661923103Pig (Pi Kun)
24651922104Dog (Pi Cho)
24641921105Rooster (Pi Raka)
24631920106Monkey (Pi Wok)

FAQ

What year is BE 2569?

BE 2569 is 2026 CE (2569 − 543 = 2026).

How do I convert a Thai year to a Western year?

Subtract 543 from the Buddhist Era year: BE 2530 − 543 = 1987. To go the other way, add 543.

Why is the Thai year different?

Thailand counts years from the Buddha’s passing (Buddhist Era). The Gregorian calendar is used for months and days, so only the year number differs.

What is the Rattanakosin Era (RS)?

An era starting with the founding of Bangkok in 1782 (RS 1). Add 1781 to get the CE year: RS 112 + 1781 = 1893.

How do I show BE dates in Excel?

For a year number use =A1-543. For a real date, a custom format like [$-th-TH]d mmm bbbb displays it in the Buddhist Era.

More tools

AgeExact age in years, months and days
18+Check whether someone has turned 18 under Thai law
Thai dateYour birthday written the Thai way, for forms
ZodiacThai zodiac animal and element by year
ColourWeekday of birth, colour and Buddha image
SchoolThai school grade and graduation years
DaysAdd days to a date, count days between dates
SongkranDays until Songkran and the new BE year
JP/TW/KRReiwa, Heisei, Minguo, Dangi → BE