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!Transverse diameter of the pelvic inlet
| [[File:Low-dose_CT_of_transverse_diameter_of_pelvic_inlet.jpg|170px]]
| Widest bony points of the '''iliopectineal lines'''
| 13 to 14.5 cm.<ref name=Cetin2016/>
|-
! Obstetric conjugate
| [[File:Low-dose_CT_of_obstetric_conjugate.jpg|120px]] <br>Median plane
| The narrowest bony points formed by the '''sacral promontory ''' and '''pubic bone by ''' next to the symphysis.
| 10 to 12 cm.<ref name=Cetin2016/>
|-
! Interspinous distance
| [[File:Low-dose_CT_of_interspinous_diameter.jpg|170px]]
| The narrowest bone points of the '''ischial spines'''
| 9.5 to 11.5 cm.<ref name="pmid21509231">{{cite journal | vauthors = Gowri V, Jain R, Rizvi S | title = Magnetic resonance pelvimetry for trial of labour after a previous caesarean section | journal = Sultan Qaboos University Medical Journal | volume = 10 | issue = 2 | pages = 210–4 | date = August 2010 | pmid = 21509231 | pmc = 3074700 }}</ref>
|-
! Sagittal pelvic outlet diameter
| [[File:Low-dose_CT_of_sagittal_pelvic_outlet_diameter.jpg|120px]]
| The narrowest bony points formed by the middle '''sacrococcygeal joint''' and the '''pubic bone''' next to the symphysis.<ref group="notes">This is also called the ''obstetric anteroposterior diameter of the pelvic outlet'', to distinguish from the ''anatomic'' one which includes the coccyx.<refbr>- [https://books.google.se/books?id=M9k0UMTAGAIC&pg=PA94 Page 94] in: {{cite book|isbntitle=Hacker & Moore's Essentials of Obstetrics and Gynecology|author=978-0-443-10281-3Neville F. Hacker, Joseph C. Gambone, Calvin J. Hobel|yearedition=20105|publisher=Elsevier LtdHealth Sciences|authoryear=2009|isbn=Sara Paterson9781437725162}}<br>However, the coccyx is normally pushed away during childbirth by laxity in the sacrococcygeal joint.<br>-Brown, Phillip Bennett, Catherine Williamson[https://books.google.se/books?id=oMfGQylCBMsC&pg=PT239 Page 239] in: {{cite book|title=Basic Science in Obstetrics Labor and Gynaecology (Fourth Edition) - Obstetric pelvic definitions and dimensionsDelivery Care: A Practical Guide|author=Wayne R. Cohen, Emanuel A. Friedman|publisher=John Wiley & Sons|year=2011|isbn=9781119971542}}</ref> || 9.5 to 11.5 cm.<ref name="pmid21509231"/> and the pubic bone by the symphysis.
|-
! Intertuberous diameter
| [[File:Low-dose_CT_scan_of_intertuberous_diameter.jpg|150px]]
| The '''ischial tuberosities ''' || 10 to 12 cm.<ref name="pmid21509231"/>
|}
