Ekamai International School (EIS)
(โรงเรียนนานาชาติเอกมัย)
1st-Year Total
฿487K–฿518K
All-in estimate
Curriculum
American
AP, Thai Matayom 6
Level of Education
3–18 yo
Kindergarten → High School
Language of Instruction
English
+ 6 more languages
Students
1,315
At this campus
EIS is one of Bangkok's oldest international schools, founded in 1946 by the Seventh-day Adventist Mission in Thailand and operating from its current location in Watthana since 1957. That history shows in the community: a large, settled student body of over 1,300 students from Pre-Kindergarten through Grade 12, drawn from 33 nationalities, with the majority Thai families alongside a broad international mix.
The curriculum is American, taught in English, with WASC accreditation since the 1990s. EIS is explicitly faith-based: a Christian school with Seventh-day Adventist values embedded in daily school life, including spiritual values and character development as core pillars alongside academics.
Families from all religious backgrounds are welcome and the majority of students do not identify as Adventist, but the ethos shapes the environment in ways that are worth understanding before you visit. Fees are among the most accessible of any full Pre-K to Grade 12 American curriculum school in Bangkok, making this one of the most affordable long-pathway options in the city.
The campus is on Soi Charoenchai off Sukhumvit 63 (Ekamai Road) in Watthana, a short ride from Ekamai BTS. For families in the Ekkamai, Thong Lo, or Phra Khanong corridor who want a full American pathway, a values-based environment, and fees that sit well below the premium schools, EIS deserves a place on the shortlist.
1st Year Tuition Fees (2025–2026)The school hasn't published 2026–2027 fees yet. We're displaying 2025–2026 rates as a reference; these may be updated once the new figures are released.
Estimated cost for any age group entering this school
Tuition fees (2025–2026)
What You Should Actually Know About Ekamai International School (EIS)
Ekamai International School occupies a distinct position in Bangkok's international school landscape as the oldest continuously operating English-medium school in Thailand, founded in 1946 by Seventh-day Adventist missionaries and formally recognised as an international school in 1992.
Located on Ekamai Soi 12, off Sukhumvit 63 in the Watthana district, the school runs an American curriculum modelled on the California State framework, supplemented by the Thai Ministry of Education's eight learning substance groups and Seventh-day Adventist Christian philosophy.
The school covers Pre-Kindergarten through Grade 12 across three divisions, offering five diploma tracks at the high school level: a General Education Diploma and four College Preparatory tracks with emphases in standard academics, Business, Medicine, and Engineering. Advanced Placement courses are available in high school in subjects including AP Biology, AP Chemistry, AP Physics, AP Calculus BC, AP Psychology, AP Micro/Macro Economics, and AP English Language and Composition.
With 1,315 students from 33 nationalities, EIS is a majority-Thai school: approximately 77% of students are Thai nationals, and the remaining 23% come from other countries. The school employs 121 full-time faculty members drawn from over a dozen nationalities, including Americans, Filipinos, Thais, Indians, Malaysians, and others; all hold at minimum a bachelor's degree and are required to hold appropriate teaching credentials, with 39% holding a master's degree.
Class sizes across the school span kindergarten through high school, with mandatory catering included through Grade 2 and optional subject selections available from Grade 3 onward. The campus includes multiple school buildings for each division, an auditorium, computer labs, science laboratories for each school level, two libraries, a health clinic, cafeteria, and courts for football, basketball, tennis, and badminton.
EIS suits families looking for a lower-cost American curriculum international school in the Sukhumvit area, particularly those comfortable with a predominantly Thai student body and a school culture shaped by Seventh-day Adventist values, including weekly chapel services and values classes in every year group. The campus is on Ekamai Soi 12, approximately 2.2 km from BTS Ekkamai station, which means most families rely on a car or school transport rather than walking. Secondary provision extends through Grade 12 with a structured college preparatory pathway, though the foreign student ratio and volume of native English-speaking teachers is notably lower than at larger Sukhumvit flagship schools. Best suited to Thai-international families and budget-conscious expats who value character-focused education, structured academics, and a Christian school environment without the price point of Bangkok's premium international schools.