One World International School
International School in Singapore
Quick answer
One World International School delivers the International Baccalaureate curriculum, with a highly diverse student body of 70 nationalities. Well-suited to internationally mobile families. Tuition of $12,000–$20,000/year is in line with Singapore averages. Note: Affordable IB option.
Key facts
- Curriculum: IB leaving qualifications include IGCSE and IB Diploma.
- Tuition: $12,000–$20,000/yr published in USD, US$ equivalent.
- Avg class size: 18 (max 18) Singapore international school · 1,800 students total.
- 70 nationalities top: We have a 30% nationality cap for any one nationality to maintain diversity..
- Ages: 3-12 school day starts at 9:00am.
- Accreditations: IBO verified.
1,800
70 (We have a 30% nationality cap for any one nationality to maintain diversity.)
18 avg / 18 max
Rolling
IBO
IGCSE and IB Diploma
About One World International School
One World International School is more than just a learning institution. While educating the next generation of leaders is our top priority, we want our students and families to know that we are a welcoming, diverse and inclusive community that strives to help all of its members make meaningful connections with one another. We have a team of world-class staff members who are passionate about education, and we are proud of the families who make up our student community. Our approach to education is distinctly different from many of the other schools in Singapore. Kindness is integral to everything we do at OWIS. From our values and mission to curricula choices, our fee point and our assessment practice - our philosophy around kindness aims to equip our students with the skills and awareness they need to thrive in a global society.
| Item | Amount |
|---|---|
| Annual tuition (USD) | $12,000 – $20,000 |
| Annual tuition (USD) | SGD 21749-SGD 25005 |
| Fee year | 2025-2026 |
| True annual cost (with hidden fees)how we calculate | $19,300(+21%) |
| First-year total (with registration + deposit) | $21,800 |
| Cost position in Singapore | 60th percentile(above average) |
Hidden costs & fee notes
Affordable IB option. No senior school. Known for inclusive community. Application fee SGD 500-2,500. Capital/development levy SGD 2,000-10,000+ (one-time). 9% GST on all fees. Uniforms SGD 200-500. Bus SGD 2,000-5,000/year. ECA SGD 1,000-3,000/year.
IB
IGCSE and IB Diploma
Cambridge IGCSE in Grade 10 and IB Diploma Programme in Grade 12.
Our IB Diploma Programme students in Grade 12 take the external examinations in May.
Mandarin, Japanese, French and Spanish. Offerings might differ across campuses. Please check with our Admissions Counsellors at the campus of your choice.
moderate
We are an inclusive school however we are unable to support students outside mainstream teaching within the classroom. We pride ourselves on supporting all students with personalised and differentiated teaching and learning within the classroom.
Yes, we offer EAL up to Grade 6. After Grade 6 we expect students to be proficient in English.
9:00am – 3:30pm
OWIS has a school canteen, which provides healthy meal options (vegetarian, asian, western) to our children. Children below Grade 3 need to pre-order whereas older students have the option to order directly. Both options are cashless.
Recommended neighborhoods
Jurong East, Bukit Timah, Clementi
Is One World International School right for your family?
A School Fit Brief scores this school against your children's ages, learning needs, and budget — with hidden fee analysis, admissions timing, and a ranked shortlist of alternatives in Singapore.
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At a Glance
Fee Position in Singapore
Budget-friendlySchool Profile
Class Size
Student Diversity
Very diverse
Common: We have a 30% nationality cap for any one nationality to maintain diversity.
Estimated Real Cost
Tuition + registration, transport, uniform, exams
Affordable IB option. No senior school. Known for inclusive community. Application fee SGD 500-2,500. Capital/development levy SGD 2,000-10,000+ (one-time). 9% GST on all fees. Uniforms SGD 200-500. Bus SGD 2,000-5,000/year. ECA SGD 1,000-3,000/year.
Decide on this school — and four others
The $49 School Fit Brief covers One World International School and 4 other top schools in Singapore — tuition + true cost, curriculum fit, admission timeline, and red flags. Builds your shortlist in 8 minutes vs the $1,500–3,500 (and 2–4 weeks) an education consultant charges for the same answer.
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Disclaimer: School profiles are source-backed decision aids, not endorsements or official rankings. Tuition figures are approximate and may not include registration fees, uniforms, transport, or exam costs. Always verify directly with the school before applying. WhereNext is not affiliated with any school listed. This is not admissions consulting, legal advice, or official school placement guidance.