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IB School Rankings All years — Top IB Schools by Diploma Score

Compare IB Diploma results. Sources are linked.

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196 schools with matching resultsAnnual results · All years

Each year counts equally. Missing years are skipped.

School results: IB Diploma, All years, annual
Rank	School	Average score	Years	Evidence
01	Makuhari International SchoolJapan	42/ 45	12025	2025 · 42 / 45 Source
02	Dhirubhai Ambani International SchoolMumbai, India	40.8/ 45	12026	2026 · 40.8 / 45 Source
03	Singapore International School (Hong Kong)Hong Kong	40/ 45	12026	2026 · 40 / 45 Source
04	Tanglin Trust SchoolSingapore	39.2/ 45	112016–2026	2026 · 39.1 / 45 Source 2025 · 39.6 / 45 Source 2024 · 39.1 / 45 Source 2023 · 38.7 / 45 Source 2022 · 41.4 / 45 Source 2021 · 41 / 45 Source 2020 · 39.1 / 45 Source 2019 · 38.2 / 45 Source 2018 · 38.1 / 45 Source 2017 · 38.8 / 45 Source 2016 · 38.1 / 45 Source
05	Chinese International SchoolHong Kong	38.9/ 45	52018–2026	2026 · 38.9 / 45 Source 2025 · 40.9 / 45 Source 2024 · 39.7 / 45 Source 2019 · 37 / 45 Source 2018 · 38 / 45 Source
06	Harrow International School BeijingChina	38.7/ 45	12025	2025 · 38.7 / 45 Source
07	Kellett School Hong kongHong Kong	38.45/ 45	22024–2025	2025 · 37.7 / 45 Source 2024 · 39.2 / 45 Source
08	Victoria Shanghai AcademyHong Kong	38.433/ 45	62013–2026	2026 · 39 / 45 Source 2025 · 37.6 / 45 Source 2024 · 38.3 / 45 Source 2023 · 37.6 / 45 Source 2021 · 39 / 45 Source 2013 · 39.1 / 45 Source
09	St. Joseph's Institution International SchoolSingapore	38.278/ 45	62021–2026	2026 · 35.67 / 45 Source 2025 · 38 / 45 Source 2024 · 38 / 45 Source 2023 · 38 / 45 Source 2022 · 37 / 45 Source 2021 · 43 / 45 Source
10	Canadian International School of Hong KongHong Kong	38.233/ 45	32024–2026	2026 · 39 / 45 Source 2025 · 37.7 / 45 Source 2024 · 38 / 45 Source
11	Beijing International Bilingual AcademyBeijing, China	38/ 45	12023	2023 · 38 / 45 Source
12	Dulwich College BeijingChina	37.95/ 45	22025–2026	2026 · 37.2 / 45 Source 2025 · 38.7 / 45 Source
13	International School of Nanshan ShenzhenShenzhen, China	37.75/ 45	22024–2025	2025 · 37.75 / 45 Source 2024 · 37.75 / 45 Source
14	Wellington College International ShanghaiChina	37.725/ 45	42014–2026	2026 · 38.2 / 45 Source 2025 · 37.4 / 45 Source 2024 · 37.1 / 45 Source 2014 · 38.2 / 45 Source
15	Léman International School ChengduChina	37.693/ 45	42022–2026	2026 · 36.57 / 45 Source 2025 · 38 / 45 Source 2024 · 38 / 45 Source 2022 · 38.2 / 45 Source
16	Beijing World Youth AcademyChina	37.667/ 45	32001–2025	2025 · 38 / 45 Source 2020 · 37 / 45 Source 2001 · 38 / 45 Source
17	Dulwich College Shanghai PudongChina	37.65/ 45	22025–2026	2026 · 37.2 / 45 Source 2025 · 38.1 / 45 Source
18	Singapore International School BangkokBangkok, Thailand	37.4/ 45	12022	2022 · 37.4 / 45 Source
18	Singapore International School of BangkokBangkok, Thailand	37.4/ 45	12022	2022 · 37.4 / 45 Source
20	Dulwich College (Singapore)Singapore	37.38/ 45	52020–2026	2026 · 37.7 / 45 Source 2025 · 37 / 45 Source 2024 · 37.6 / 45 Source 2023 · 37.6 / 45 Source 2020 · 37 / 45 Source
21	Dulwich College Shanghai PuxiChina	37.3/ 45	22025–2026	2026 · 37.5 / 45 Source 2025 · 37.1 / 45 Source
22	The British School of MilanMilan, Italy	37.26/ 45	52022–2026	2026 · 39 / 45 Source 2025 · 37 / 45 Source 2024 · 37.3 / 45 Source 2023 · 36 / 45 Source 2022 · 37 / 45 Source
23	Canadian International School of SingaporeSingapore	37.2/ 45	32020–2025	2025 · 38.7 / 45 Source 2024 · 35 / 45 Source 2020 · 37.9 / 45 Source
24	Shanghai American SchoolShanghai, China	37.067/ 45	32024–2026	2026 · 38.7 / 45 Source 2025 · 37.5 / 45 Source 2024 · 35 / 45 Source
25	Chengdu International SchoolChengdu, China	37.05/ 45	22025–2026	2026 · 37.4 / 45 Source 2025 · 36.7 / 45 Source
26	American School of BarcelonaEsplugues de Llobregat, Spain	37/ 45	12026	2026 · 37 / 45 Source
26	North London Collegiate School JejuSouth Korea	37/ 45	22025–2026	2026 · 37 / 45 Source 2025 · 37 / 45 Source
26	Shrewsbury International School, Bangkok Riverside CampusBangkok, Thailand	37/ 45	12023	2023 · 37 / 45 Source
26	Sri KDU International SchoolMalaysia	37/ 45	12020	2020 · 37 / 45 Source
26	Taejon Christian International SchoolDaejeon, South Korea	37/ 45	12021	2021 · 37 / 45 Source

Results link to their sources. Missing scores do not count as zero. How it works