Ruamrudee International School
A Catholic, non-profit American-curriculum school in Minburi, east Bangkok, for 1,101 pupils aged 2 to 18, with the IB Diploma and AP courses.
Prospectus · Updated 20 October 2026
Fees a year USD
15,100–23,400
Pupils
1,101
Ages
2–18
IB average
33
In brief
Redemptorist priests opened RIS in 1957 behind Holy Redeemer Church in central Bangkok. It moved to a 29-acre campus in Minburi in 1992.
There were 1,101 pupils aged 2 to 18 in 2026/27. Teaching follows US standards. In Grades 11 and 12 pupils take the IB Diploma, AP courses or a mix. In 2026, 32 Diploma candidates averaged 33 points; the world average was 31. Most pupils speak English and Thai.
Tuition and yearly fees run from USD 15,100 to USD 23,400 in 2026/27. A boarding house takes 60 pupils from Grade 7.
› Sources
History 2026 · High School Profile 2026–2027 2026 · Campus Facilities 2026 · Tuition & Fees 2026–2027 2026 · RIS Residence 2026 · How to Apply 2026 · RIS Announces New School Director 2021 · Vision & Mission 2026 · Curriculum 2026
What the community says
Feedback from parents and people in the community. Updated 20 October 2026
Pros
- Leavers reach universities in the US and UK
- Choice of IB Diploma, AP or both
- Friendly, close-knit pupil community
- Caring teachers
- Performing arts facilities stand out
Worth knowing
- A long drive from central Bangkok
- High fees, even for wealthy families
- Entry tests in maths and English
- Sports teams less competitive than some rivals
- Local floods moved classes online in 2026
› Sources
รร.ร่วมฤดี หรือรร.อินเตอร์ทั่วไปดี 2015 · สอบเข้าโรงเรียนนานาชาติร่วมฤดี 2024 · เรียนโรงเรียนนานาชาติ 2013 · ต้องรวยขนาดไหนถึงจะส่งลูกเรียนนานาชาติดังๆ เช่น 2013 · Ruamrudee International School 2026 · Ruamrudee International School reviews 2026 · Reviews of Ruamrudee International School 2020 · A Union of Hearts 2026 · 'เขตมีนบุรี' แนะ บ้าน-ทรัพย์สินถูกน้ำท่วม รีบถ่า 2026
Fees
| Pre-K, ages 2 to 4 | 2–5 | USD 14,500 | USD 15,100 |
| Kindergarten | 5–6 | USD 14,500 | USD 15,300 |
| Grades 1 to 5 | 6–11 | USD 19,700 | USD 20,400 |
| Grades 6 to 8 | 11–14 | USD 20,700 | USD 21,300 |
| Grades 9 to 12 | 14–18 | USD 22,800 | USD 23,400 |
- Fees for 2026/27
- All in = tuition plus campus development fee (USD 596, every pupil, USD 298 a semester) and technology fee (USD 179, kindergarten to Grade 5)
- Children of former pupils get 5% to 30% off tuition
Enrolment fees & charges
| Application fee | USD 149 | No |
| Registration fee, first childPaid on accepting a place | USD 5,960 | No |
| Registration fee, siblings | USD 4,470 | No |
| Learning resources feeBooks and materials for the whole time at RIS | USD 1,190 | No |
| Re-enrolment depositReturned on leaving if notice deadlines are met | USD 1,490 | Yes |
Additional fees & charges
| Set lunch, snack and milk | USD 966 | A year; required from Pre-K to Grade 1 |
| Set lunch | USD 542 | A year; optional in Grades 2 to 5 |
| Snack and milk | USD 483 | A year; optional in Grades 2 to 5 |
| Explore the Kingdom trip | USD 447 | Grades 6 to 8, four days |
| Graduation | USD 134 | Grade 12 |
| English language support | USD 1,790 | A year, when assessed as needed |
| Learning support | USD 2,380 | A year, when assessed as needed |
| Yearbook | USD 30 to USD 51 | |
| School bus | Varies | Paid to Montri Bus directly |
| Weekly boarding | USD 9,760 | A year, shared room |
| Full boarding | USD 14,500 | A year, shared room |
| Visa and re-entry permits | USD 229 | A year, non-Thai boarders |
Tuition covers teaching. Learning resources are paid once on joining
First-year cost, joining at 5
| Tuition, Kindergarten | USD 14,500 |
| Campus development fee | USD 596 |
| Technology fee | USD 179 |
| Application fee | USD 149 |
| Registration fee, first child | USD 5,960 |
| Learning resources fee | USD 1,190 |
| Re-enrolment deposit, refundable | USD 1,490 |
| First year in all | USD 24,100 |
| Of which returned when you leave | USD 1,490 |
Left out: bus, uniform, required lunches and the Grade 6–8 trip
First-year cost, joining at 11
| Tuition, Grades 6 to 8 | USD 20,700 |
| Campus development fee | USD 596 |
| Application fee | USD 149 |
| Registration fee, first child | USD 5,960 |
| Learning resources fee | USD 1,190 |
| Re-enrolment deposit, refundable | USD 1,490 |
| First year in all | USD 30,100 |
| Of which returned when you leave | USD 1,490 |
Left out: bus, uniform, required lunches and the Grade 6–8 trip
Fee history
Dotted: projected at the average yearly rise since 2021/22 (about 0.8% a year at the top).
| 2026/27 | USD 15,100 | USD 23,400 | USD 21,300 | +0.0% |
| 2025/26 | USD 15,100 | USD 23,400 | USD 21,300 | +2.9% |
| 2024/25 | USD 14,700 | USD 22,800 | USD 20,700 | +0.0% |
| 2023/24 | USD 14,700 | USD 22,800 | USD 20,700 | +1.6% |
| 2022/23 | USD 14,400 | USD 22,500 | USD 20,400 | +0.0% |
| 2021/22 | USD 14,400 | USD 22,500 | USD 20,400 |
Sibling discount
- Registration fee — USD 1,490 less
- Tuition — USD 447 less a semester
Scholarships
- Griffith Scholarship — up to 30% off tuition
- Academic, arts and achievement awards
- Apply by 31 March
Payment
- Two semesters, due June and November
- Cards — up to 2.2% surcharge
Late payment
USD 15 a day
Leaving
- Notice by end of October to leave in January
- Notice by end of March to leave in June
- Late notice forfeits the deposit
Refunds
- Before term — all but the registration fee
- First 20 days — 60% of tuition back
› Sources
Fee history: Lowest Pre-K, highest Grades 9 to 12, with the campus fee
Tuition & Fees 2026–2027 2026 · Tuition & Fees Policy 2025–2026 2025 · Tuition & Fees 2026 · Scholarships 2026 · Alumni Parents Tuition 2026 · Tuition & Fees 2021–2022 2021 · Tuition & Fees 2022–2023 2022 · Tuition & Fees 2023–2024 2022 · Tuition & Fees 2024–2025 2024 · Tuition & Fees 2025–2026 2025
Location
Address
6 Ramkhamhaeng 184, Minburi, Bangkok 10510
Nearest station
Min Buri (MRT Pink Line), about 3 km
› Sources
Contact 2026 · OpenStreetMap 2026 · OpenStreetMap 2026
Accreditations and inspections
Licence
Thai Ministry of Education
Accreditations
- WASC
- Six-year WASC term after a November 2020 visit
Programmes
- IB Diploma, since 1998
- Advanced Placement
Memberships
- EARCOS
- SEASAC and BISAC (sport)
Affiliation
- Redemptorist Fathers of Thailand
- RIS Swiss Section, on the campus
- RIS campuses in Ratchapruek, Phuket, Phraya Suren
School codes
- CEEB 695300
- IB 001044
- UCAS 45065
› Sources
History 2026 · High School Profile 2026–2027 2026 · EARCOS member schools 2026 · 2022 Head of School 2021 · Phoenix Athletics 2026 · RIS Residence 2026 · 68 Years of Excellence at RIS 2024 · Admissions Brochure 2024
Pupils and teaching
Curriculum
- AERO and NGSS standards, Kindergarten to Grade 12
- Reggio Emilia approach in Pre-K
- 22 IB and 21 AP courses
Class size
- Pre-K — 12 to 14
- Kindergarten to Grade 5 — 18 to 22
- Grades 6 to 12 — 22
Early years
- Pre-K from age 2
- Teacher and aide in each class
- An art specialist (atelierista)
Pupil mix
Most fluent in English and Thai
Taught in
English
Languages
- Thai for all, Kindergarten to Grade 5
- Mandarin, Spanish, Japanese from Grade 6
- Thai every semester for Thai nationals
English support
- WIDA screening at entry
- In-class and small-group support
- USD 894 a semester
Learning support
- Learning Support, Pre-K to Grade 12
- Psychologist and speech therapist
- USD 1,190 a semester
University guidance
- University counsellors
- A counsellor for Thai universities
› Sources
Curriculum 2026 · Early Childhood 2026 · Elementary School 2026 · Middle School 2026 · Student Support 2026 · Admissions Brochure 2024 · High School Profile 2026–2027 2026 · Tuition & Fees 2026–2027 2026
Boarding
Boarders
60 places (2026)
Ages
Grades 7 to 12
Options
- Weekly
- Full-time
Rooms
Twin rooms, shared bathrooms
Included
- Breakfast, dinner and a lunch allowance
- Laundry three times a week
- Tutoring in study hours
Closed
- Summer
- Long holidays, unless approved
› Sources
RIS Residence 2026 · Tuition & Fees 2026–2027 2026
Results and destinations
Exams at 18
- US high school diploma
- IB Diploma
- AP
IB Diploma
- Top score 39 points in 2026
- 44% earned a bilingual diploma in 2026
AP
147 pupils sat 353 exams in 2026
SAT average
Class of 2027 — mean 1245
University offers
- Up to 15 applications per pupil
- 19 places in medicine and dentistry
| 2026 | 32 | 33 | 97% | 31 | 92% |
| 2025 | 38 | 34 | 97% | ||
| 2024 | 42 | 32 | 95% | ||
| 2023 | 23 | 35 | 85% | ||
| 2022 | 19 | 38 | 95% |
University destinations
US
+ 6 more
- Penn State
- Michigan State
- Miami
- Babson
- The New School
- Embry-Riddle
Thailand
Asia
- HKU Hong Kong
- Waseda Japan
- Fudan China
- Shanghai Jiao Tong China
- Zhejiang China
- NYU Shanghai China
- Temple Japan Japan
- Symbiosis India
Europe
- Bocconi Italy
- Politecnico di Milano Italy
- Charles University Czech Republic
- NABA Italy
Elsewhere
- UBC Canada
- Guelph Canada
- Canterbury New Zealand
› Sources
Destinations: Class of 2026
Class of 2027: 95 seniors
High School Profile 2026–2027 2026 · High School 2026
Staff
Qualifications
- Pre-K teachers certified in early childhood
- Primary teachers certified in their subjects
› Sources
Early Childhood 2026 · Elementary School 2026
Facilities
Campus
29 acres, Minburi
Sport
- FINA-standard pool
- Artificial-turf field
- Two multipurpose gyms, two covered gyms
- Squash courts
Arts
- Performing arts centre
- Recording studio
- Art studios, choir and music rooms
Learning
- Two libraries, 100,000+ items
- Makerspaces and robotics lab
- Culinary arts centre
Early years
- Indoor playground, 2024
- Early childhood atelier, 2025
Other
- Clinic with registered nurses
- Church and chapel on campus
› Sources
Campus Facilities 2026 · Facilities 2026 · 68 Years of Excellence at RIS 2024 · Opening of the Early Childhood Atelier 2025
School life
The day
School year
- Two semesters, 181 days
- 13 August 2026 to 10 June 2027
Lunch
- Set lunch, Pre-K to Grade 1
- Canteen or set lunch from Grade 2
Bus
Montri Bus, booked directly
Beyond lessons
Activities
- Extended Day Program after school
- Model UN, National Honor Society
Sport
- 60 teams
- BISAC and SEASAC
Music and arts
- Bands, choirs, theatre, dance
- Thai classical dance and music
Trips
Explore the Kingdom, Grades 6 to 8
Programmes
Service learning in every section
Care
Pastoral
- Counsellors in each section
- A school psychologist
Faith
- Catholic, with daily Mass on campus
- Religion or Values classes for all
Medical
Clinic with registered nurses
Security
- ID-card gates
- 24-hour CCTV
Air quality
- Primary play indoors above AQI 150
- Everyone indoors above AQI 200
Devices
- Class iPads, Grades 1 and 2
- Chromebooks, Grades 3 to 5
- Laptops from Grade 6
› Sources
School Calendar 2026–2027 2026 · Campus Facilities 2026 · Tuition & Fees 2025–2026 2025 · Phoenix Athletics 2026 · Middle School 2026 · Religion 2026 · Safety & Security 2026 · Air Quality Index Policy 2026 · Student Support 2026 · Elementary School 2026 · High School Profile 2026–2027 2026
Admissions
Who can join
Thai nationals
Yes
Visas
Non-immigrant visa for non-Thai pupils
Entry
Any grade with places, rolling
Selection
Places depend on assessment
Age cut-off
31 August (converter)
Applying
Documents
- Birth certificate
- Three years of school reports
- Thai ID and house registration, or passports
Assessment
- Pre-K — developmental screening
- Grade 1 — readiness and English test
- Grades 2 to 12 — MAP reading, maths, writing
Deadlines
- Round 1 — 15 December 2026
- Round 2 — 20 April 2027
Mid-year
Yes, tuition prorated
Contact
admissions@rism.ac.th
Phone
+66 2 791 8900
› Sources
How to Apply 2026 · Tuition & Fees Policy 2025–2026 2025 · Contact 2026
Leadership
James O'Malley
Head of School, since 2022
Joined RIS in 2018 as High School Principal and was interim head from 2020. Studied at Florida State University (BA, EdD) and the University of Central Florida (MS).
Jittapol Plangklang
School Director, since 2021
A Redemptorist priest. Joined RIS as a counsellor, became assistant director in 2019 and school manager in 2020. Holds master's degrees from Fordham and the University of Pennsylvania.
Nathan Meisner
High School Principal
Leads Grades 9 to 12, including the IB Diploma and AP programmes.
› Sources
2022 Head of School 2021 · RIS Announces New School Director 2021 · Belonging at RIS 2026 · High School Profile 2026–2027 2026 · A Union of Hearts 2026
Ownership, changes and plans
1957
Opens in four wooden classrooms behind Holy Redeemer Church, Bangkok
1963
Ruam Rudi School is chartered and renamed Ruamrudee International School
1992
Moves from Soi Ruamrudee to its campus in Minburi
1998
Becomes an IB World School, offering the Diploma
2019
Opens a sister campus in Ratchapruek, Nonthaburi
2020
WASC grants a six-year term after a November visit
2021
Fr. Jittapol Plangklang succeeds Fr. Apisit Kritsaralam as School Director
2021
Yearly campus development fee replaces a USD 5,960 deposit
2022
James O'Malley becomes Head of School
› Sources
History 2026 · RIS Expands its Presence with the Launch of a Ne 2019 · 2022 Head of School 2021 · RIS Announces New School Director 2021 · Tuition & Fees Policy 2025–2026 2025
Links
› Sources
Tuition & Fees 2026