How much is annual tuition for a child aged 2–5 at Ruamrudee International School (RIS, Minburi)?

538,400 THB per year (833,400 THB in the first year, including one-time fees).

How much is annual tuition for a child aged 14–18 at Ruamrudee International School (RIS, Minburi)?

786,000 THB per year (1,081,000 THB in the first year, including one-time fees).

Ruamrudee International School (RIS, Minburi)

Ages: 2–18Kindergarten–Sixth Form
Location: Min Buri, Bangkok

Cost per year

From538,400 THBFollowing years

First year: 833,400 THB

Ages	First year	Following years
	833,400 THB	538,400 THB
	1,007,400 THB	712,400 THB
	975,000 THB	680,000 THB
	1,011,000 THB	716,000 THB
	1,081,000 THB	786,000 THB

First year includes one-time fees such as registration and deposit

Additional fees that may apply

These are not included in the figures above. They are charged only in certain cases — not to every family — so read the note on each line to see when it applies.

English support (ESL)30,000 THB per term
English Language Development (ELD) — based on assessment results, not mandatory for all students
Other40,000 THB per term
Learning Support (LS) — based on assessment results, not mandatory for all students

Location

Min Buri, Bangkok · Open in Google Maps

Official website Call Directions

Exam results

IB Diploma, Class of 2025 — pass rate97% (average score 34 out of 45, highest 45; world average approximately 30)

Basic information

Founded in 1957 in Minburi, Ruamrudee International School is one of Bangkok's oldest international schools, teaching an American curriculum alongside IB and AP to over 1,400 students from 25 nationalities. Its 2025 IB Diploma cohort achieved a 97% pass rate with an average score of 34 out of 45.

Curriculum	American, AP, IB
Language of instruction	English
Nationalities	25
Founded	1957
Accreditation	CIS, IB World School, WASC
Student count	1400
Religious affiliation	Catholic
Organisation type	Not-for-profit
Website	https://www.rism.ac.th/