Siam International School
- IGCSE
- A Level
- British
Per yearabout USD 7.33K–14.3K
THB 246K–480K · 2026-27 school year · Source: school website (checked 2026-11-06)
About
International school in Pathum Thani offering early years to A Level, with a focus on academic excellence and global readiness.
Key facts
Source: Read from the school's website
Info checked 2026-11-06 · Fees 2026-27
Curriculum
IGCSE · A Level · British
Ages
Ages 2–18
Language
English
Type
International school
Fee level
- Accreditations
- pearson
Fees
Source: Read from the school's website
2026-27 school year
Age on the first day of the school year (usually 1 September). Cut-off dates differ by school.
| Grade | Per year |
|---|---|
| Nursery | THB 246,000≈ USD 7.33K |
| KG 1-2 | THB 246,000≈ USD 7.33K |
| Year 1-6 | THB 360,000≈ USD 10.7K |
| Year 7-9 | THB 420,000≈ USD 12.5K |
| Year 10-11 | THB 450,000≈ USD 13.4K |
| Year 12-13 | THB 480,000≈ USD 14.3K |
| per year | |
|---|---|
| Nursery | THB 246,000 (about USD 7.33K) |
| KG 1-2 | THB 246,000 (about USD 7.33K) |
| Year 1-6 | THB 360,000 (about USD 10.7K) |
| Year 7-9 | THB 420,000 (about USD 12.5K) |
| Year 10-11 | THB 450,000 (about USD 13.4K) |
| Year 12-13 | THB 480,000 (about USD 14.3K) |
Source: school website (siamis.ac.th) · checked 2026-11-06 · ECB reference rate (2026-11-06)
| min | max | |
|---|---|---|
| Siam International School (this school) | THB 246,000 (about USD 7.33K) | THB 480,000 (about USD 14.3K) |
| NIST International School | THB 650,200 (about USD 19.4K) | THB 1,132,800 (about USD 33.8K) |
| Bangkok Patana School | THB 515,000 (about USD 15.4K) | THB 1,014,000 (about USD 30.2K) |
| KIS International School Bangkok | THB 459,800 (about USD 13.7K) | THB 984,700 (about USD 29.4K) |
| Harrow International School Bangkok | THB 634,600 (about USD 18.9K) | THB 1,063,000 (about USD 31.7K) |
| Bangkok Prep International School | THB 384,800 (about USD 11.5K) | THB 862,200 (about USD 25.7K) |
Source: school website (siamis.ac.th) · checked 2026-11-06 · ECB reference rate (2026-11-06)
One-off costs
- Application fee
- THB 5,000
- Enrolment fee
- THB 150,000
- Lunch
- THB 30,000
As published by the school. Amounts change with the school year and exchange rates; please confirm with the school before applying. Converted amounts use the reference rate of the date shown. ECB reference rate (2026-11-06). Source: school website (checked 2026-11-06)
Curriculum and academics
Source: Read from the school's website
Curricula, explained
IGCSE
Ages 14–16, 2 years · Ages 14–16
A subject-by-subject qualification taken around age 16 in British-style schools — usually 5–10 subjects studied over two years.
A Level
Last 2 years of school · Ages 16–18
The British university-entrance qualification: usually 3–4 subjects studied in depth for two years; UK universities make offers on these grades.
British curriculum
Early years to sixth form · Ages 3–18
Follows the English National Curriculum; pupils usually take IGCSEs around age 16 and A Levels in the last two years.
Ages are the usual bands; schools can differ.Curriculum basics guide
Strengths
- Academics
- Sport
- Performing arts
- STEM
- Visual arts
Exam results
- A Level · Top grades
- 92%
Student support
Source: Read from the school's website
- Boarding
- Yes
- Lunch included
- Yes
Campus and school life
Source: Read from the school's website
Sports
- Football
- Golf
- Athletics
Arts
- Music
- Dance
- Art
After-school activities
- Football
- Cooking & baking
- Music classes
- Games and strategy
- Robotics
- Arts & languages
- Debate
- Athletics
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Sign in to requestLicence
Listed in the Office of the Private Education Commission (OPEC) register of international schools in Thailand (checked 2026-10-29).
Diving deeper
Source: Read from the school's website
Uniform
School uniform is required; pricing is available on request.
School website · Checked 2026-11-06
Academics
Source: Read from the school's website
Exam results
Reports a 95% pass rate and 92% A*–A grades in Pearson Edexcel International A Level, and operates an examination centre.
- Pearson Edexcel International A Level
- Examination Centre
School website · Checked 2026-11-06
Academic calendar
Open linkSchool website · Checked 2026-11-06
Extra-curricular activities
Source: Read from the school's website
Academic and intellectual
Debate, robotics and STEM clubs build critical thinking and analytical skills.
- Debate
- Robotics
- STEM clubs
- Coding club
School website · Checked 2026-11-06
Arts and creative
Offers creative activities including music, dance and art.
- Music classes
- Dance
- Art
School website · Checked 2026-11-06
Lifestyle and wellbeing
Sports such as football and athletics support physical health and teamwork.
- Football
- Athletics
- Golf program
School website · Checked 2026-11-06
Admissions
Source: Read from the school's website
Admissions
Families enquire or book a visit, then tour the campus and complete a short assessment. After submitting an application, they receive an offer and confirm enrolment.
School website · Checked 2026-11-06
Location
Source: Read from the school's website
55/5 Moo.1, Rangsit-Nakhon Nayok Rd., Pathum Thani, Thailand
Approximate location. Please use the address above for the exact spot.
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