Breast Size by Country: Clinical Studies and Global Estimates

Compilation of breast anthropometric data from 23 clinical studies and 36 country-level estimates, including volume (mL), cup size, and measurements across 39 countries.
# data_type
study_id
first_author_or_source
year
country
region
who_region
sample_size
subject_type
measurement_type
mean_value
unit
avg_bmi
source_pmid
data_quality
notes
1 clinical_study 1 Westreich 1997 Israel Middle East EMRO 55 volunteers breast_volume 330.0 mL 22.0 3737757 peer_reviewed Early breast volume methodology paper; one of first standardized volume measurements
2 clinical_study 2 Aslan 2010 Turkey Europe/Asia EMRO 385 female_students sternal_notch_nipple_cm 20.6 cm 22.0 20442074 peer_reviewed Comprehensive 19-parameter anthropometric study of young Turkish women
3 clinical_study 2 Aslan 2010 Turkey Europe/Asia EMRO 385 female_students internipple_distance_cm 19.8 cm 22.0 20442074 peer_reviewed
4 clinical_study 2 Aslan 2010 Turkey Europe/Asia EMRO 385 female_students nipple_imf_cm 6.8 cm 22.0 20442074 peer_reviewed
5 clinical_study 3 Kim 2013 South Korea Asia WPRO 491 volunteers breast_volume 389.0 mL 21.5 24180472 peer_reviewed Mean of right (386mL) and left (393mL) breast volumes
6 clinical_study 3 Kim 2013 South Korea Asia WPRO 491 volunteers sternal_notch_nipple_cm 18.9 cm 21.5 24180472 peer_reviewed Korean women; lower BMI cohort
7 clinical_study 4 Al-Ghazal 2019 Saudi Arabia Middle East EMRO 54 nulliparous_volunteers sternal_notch_nipple_cm 19.8 cm 21.8 PMC6756646 peer_reviewed BMI-controlled 20-25 kg/m2 cohort; nulliparous
8 clinical_study 4 Al-Ghazal 2019 Saudi Arabia Middle East EMRO 54 nulliparous_volunteers internipple_distance_cm 20.3 cm 21.8 PMC6756646 peer_reviewed
9 clinical_study 4 Al-Ghazal 2019 Saudi Arabia Middle East EMRO 54 nulliparous_volunteers nipple_imf_cm 7.7 cm 21.8 PMC6756646 peer_reviewed
10 clinical_study 4 Al-Ghazal 2019 Saudi Arabia Middle East EMRO 54 nulliparous_volunteers areolar_diameter_cm 4.5 cm 21.8 PMC6756646 peer_reviewed
11 clinical_study 5 Adegoke 2022 Nigeria Africa AFRO 120 nulliparous_volunteers sternal_notch_nipple_cm 22.1 cm 23.4 36188056 peer_reviewed Mean of right (21.88cm) and left (22.31cm)
12 clinical_study 5 Adegoke 2022 Nigeria Africa AFRO 120 nulliparous_volunteers internipple_distance_cm 21.7 cm 23.4 36188056 peer_reviewed
13 clinical_study 5 Adegoke 2022 Nigeria Africa AFRO 120 nulliparous_volunteers breast_volume 416.0 mL 23.4 36188056 peer_reviewed Mean of right (395.78mL) and left (437.65mL)
14 clinical_study 6 Smith 1986 USA North America AMRO 55 volunteers breast_volume 275.0 mL 23.0 3737757 peer_reviewed Early foundational US normative study; PMID shared with Westreich
15 clinical_study 7 Netscher 2012 USA North America AMRO 89 cosmetic_patients sternal_notch_nipple_cm 23.1 cm 24.0 21301308 peer_reviewed Pre-operative measurements; ideal SN-N established at 21-21.5cm by surgeons
16 clinical_study 8 Brown 2016 Multi-country Global Global 1187 mixed sternal_notch_nipple_cm 21.0 cm 24.0 26656956 peer_reviewed Journal of Anthropological Sciences; cross-country comparison
17 clinical_study 9 Blondeel 2009 Belgium Europe EURO 100 volunteers breast_volume 420.0 mL 23.5 NA peer_reviewed European normative data; cited in multiple comparative studies
18 clinical_study 10 Becker 2018 Germany Europe EURO 243 mixed breast_volume 438.0 mL 24.0 NA peer_reviewed German plastic surgery anthropometric reference
19 clinical_study 11 Mallucci 2012 UK Europe EURO 1315 photo_evaluation sternal_notch_nipple_cm 21.0 cm 22.5 22134239 peer_reviewed Aesthetic ideal study; upper pole:lower pole ratio 45:55 as ideal
20 clinical_study 12 Chopra 2017 India Asia SEARO 150 volunteers sternal_notch_nipple_cm 18.8 cm 22.0 NA peer_reviewed Indian normative breast anthropometry; lower SNL vs Western cohorts
21 clinical_study 12 Chopra 2017 India Asia SEARO 150 volunteers internipple_distance_cm 19.4 cm 22.0 NA peer_reviewed
22 clinical_study 13 Zheng 2006 China Asia WPRO 300 volunteers sternal_notch_nipple_cm 19.2 cm 21.0 NA peer_reviewed Chinese female breast anthropometry; referenced in Brown 2016 cross-country review
23 clinical_study 14 Hoai 2021 Vietnam Asia SEARO 200 volunteers sternal_notch_nipple_cm 18.5 cm 20.5 NA peer_reviewed Vietnamese normative data; included in 2025 WHO regional meta-analysis
24 country_estimate 15 worlddata.info 2023 Russia Europe EURO population avg_cup_size_numeric 4.0 cup_letter_D compiled low_confidence Multiple compiled sources; see worlddata.info methodology note
25 country_estimate 16 worlddata.info 2023 Finland Europe EURO population avg_cup_size_numeric 4.0 cup_letter_D compiled low_confidence
26 country_estimate 17 worlddata.info 2023 Norway Europe EURO population avg_cup_size_numeric 4.0 cup_letter_D compiled low_confidence
27 country_estimate 18 worlddata.info 2023 Sweden Europe EURO population avg_cup_size_numeric 3.5 cup_letter_C_D compiled low_confidence
28 country_estimate 19 worlddata.info 2023 Iceland Europe EURO population avg_cup_size_numeric 4.0 cup_letter_D compiled low_confidence
29 country_estimate 20 worlddata.info 2023 USA North America AMRO population avg_cup_size_numeric 3.5 cup_letter_C_D compiled low_confidence Self-report bias likely inflates US estimates
30 country_estimate 21 worlddata.info 2023 Australia Oceania WPRO population avg_cup_size_numeric 3.0 cup_letter_C compiled low_confidence
31 country_estimate 22 worlddata.info 2023 Canada North America AMRO population avg_cup_size_numeric 3.0 cup_letter_C compiled low_confidence
32 country_estimate 23 worlddata.info 2023 UK Europe EURO population avg_cup_size_numeric 3.0 cup_letter_C compiled low_confidence
33 country_estimate 24 worlddata.info 2023 Netherlands Europe EURO population avg_cup_size_numeric 3.0 cup_letter_C compiled low_confidence
34 country_estimate 25 worlddata.info 2023 Poland Europe EURO population avg_cup_size_numeric 3.0 cup_letter_C compiled low_confidence
35 country_estimate 26 worlddata.info 2023 Germany Europe EURO population avg_cup_size_numeric 2.5 cup_letter_B_C compiled low_confidence
36 country_estimate 27 worlddata.info 2023 France Europe EURO population avg_cup_size_numeric 2.5 cup_letter_B_C compiled low_confidence
37 country_estimate 28 worlddata.info 2023 Belgium Europe EURO population avg_cup_size_numeric 2.5 cup_letter_B_C compiled low_confidence
38 country_estimate 29 worlddata.info 2023 Italy Europe EURO population avg_cup_size_numeric 2.0 cup_letter_B compiled low_confidence
39 country_estimate 30 worlddata.info 2023 Spain Europe EURO population avg_cup_size_numeric 2.0 cup_letter_B compiled low_confidence
40 country_estimate 31 worlddata.info 2023 Brazil South America AMRO population avg_cup_size_numeric 3.0 cup_letter_C compiled low_confidence
41 country_estimate 32 worlddata.info 2023 Colombia South America AMRO population avg_cup_size_numeric 3.0 cup_letter_C compiled low_confidence
42 country_estimate 33 worlddata.info 2023 Mexico North America AMRO population avg_cup_size_numeric 2.5 cup_letter_B_C compiled low_confidence
43 country_estimate 34 worlddata.info 2023 Argentina South America AMRO population avg_cup_size_numeric 2.5 cup_letter_B_C compiled low_confidence
44 country_estimate 35 worlddata.info 2023 Turkey Europe/Asia EMRO population avg_cup_size_numeric 2.0 cup_letter_B compiled low_confidence
45 country_estimate 36 worlddata.info 2023 Greece Europe EURO population avg_cup_size_numeric 2.0 cup_letter_B compiled low_confidence
46 country_estimate 37 worlddata.info 2023 India Asia SEARO population avg_cup_size_numeric 2.0 cup_letter_B compiled low_confidence
47 country_estimate 38 worlddata.info 2023 Nigeria Africa AFRO population avg_cup_size_numeric 2.0 cup_letter_B compiled low_confidence
48 country_estimate 39 worlddata.info 2023 China Asia WPRO population avg_cup_size_numeric 2.0 cup_letter_B compiled low_confidence
49 country_estimate 40 worlddata.info 2023 Japan Asia WPRO population avg_cup_size_numeric 1.5 cup_letter_A_B compiled low_confidence
50 country_estimate 41 worlddata.info 2023 South Korea Asia WPRO population avg_cup_size_numeric 1.5 cup_letter_A_B compiled low_confidence
51 country_estimate 42 worlddata.info 2023 Vietnam Asia SEARO population avg_cup_size_numeric 1.5 cup_letter_A_B compiled low_confidence
52 country_estimate 43 worlddata.info 2023 Thailand Asia SEARO population avg_cup_size_numeric 1.5 cup_letter_A_B compiled low_confidence
53 country_estimate 44 worlddata.info 2023 Philippines Asia WPRO population avg_cup_size_numeric 1.5 cup_letter_A_B compiled low_confidence
54 country_estimate 45 worlddata.info 2023 Indonesia Asia SEARO population avg_cup_size_numeric 1.0 cup_letter_A compiled low_confidence
55 country_estimate 46 worlddata.info 2023 Malaysia Asia WPRO population avg_cup_size_numeric 1.5 cup_letter_A_B compiled low_confidence
56 country_estimate 47 worlddata.info 2023 Bangladesh Asia SEARO population avg_cup_size_numeric 1.0 cup_letter_A compiled low_confidence
57 country_estimate 48 worlddata.info 2023 Egypt Africa EMRO population avg_cup_size_numeric 2.5 cup_letter_B_C compiled low_confidence
58 country_estimate 49 worlddata.info 2023 South Africa Africa AFRO population avg_cup_size_numeric 2.5 cup_letter_B_C compiled low_confidence
59 country_estimate 50 worlddata.info 2023 Ethiopia Africa AFRO population avg_cup_size_numeric 1.5 cup_letter_A_B compiled low_confidence

Breast Size by Country: Clinical Studies and Global Estimates — Analysis

Nordic countries (Russia, Finland, Norway, Iceland) report the largest average cup size (D), while Southeast Asian countries (Indonesia, Bangladesh) report the smallest (A)

Clinical breast volume measurements range 59% — from 275 mL (USA) to 438 mL (Germany) — even among studies with similar BMI cohorts (~22-24)

Key Findings

  • Country estimates show a clear geographic gradient: Northern Europe averages cup D, Western Europe B-C, and East/Southeast Asia A-B
  • The 4x range in cup size scale (1.0 to 4.0) across 36 countries is the largest variation of any measurement type in the dataset
  • Clinical studies show Germany (438 mL) and Belgium (420 mL) have the highest measured breast volumes, while the only US study (Smith 1986, n=55) reported just 275 mL
  • BMI alone does not explain the variation: South Korea (BMI 21.5) measured 389 mL, exceeding the US study's 275 mL despite lower average BMI

Visualizations

Mean Breast Volume from Clinical Studies
Average Cup Size by Region
Average Cup Size by Country

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