April 2, 2025•8 •
- [1]McGhee, D.E. & Steele, J.R. (2010). Biomechanics of breast support for active women. Sports Medicine, 40(4), 317-338. PubMed
- [2]Greenbaum, A.R., Heslop, T., Morris, J., & Dunn, K.W. (2003). An investigation of the suitability of bra fit in women referred for reduction mammaplasty. British Journal of Plastic Surgery, 56(7), 675-680. PubMed
- [3]Coltman, C.E., Steele, J.R., & McGhee, D.E. (2017). Does breast volume affect bra requirements for women with large breasts? Journal of Sports Sciences, 35(5), 457-465. PubMed
- [4]Mason, B.R., Page, K.A., & Fallon, K. (1999). An analysis of movement and discomfort of the female breast during exercise and the effects of breast support in three conditions. Journal of Science and Medicine in Sport, 2(2), 134-144. PubMed
- [5]r/ABraThatFits Community. Bra fit check guide and troubleshooting methodology. Community-validated fitting guidance. Reddit r/ABraThatFits
Bra Calculator Editorial Team
Researched & Written byCommunity-Validated
Our content is researched, written, and regularly updated by our editorial team using the A Bra That Fits (ABTF) methodology — the same approach validated by the 500,000+ member r/ABraThatFits community. We cite peer-reviewed research, lingerie industry standards, and community data. Our calculators process data locally in your browser; we do not collect body measurements.
We use the modern 6-measurement ABTF method rather than the outdated +4 inch rule. This approach has been independently validated by the r/ABraThatFits community to produce more accurate and comfortable bra sizes than traditional two-measurement methods.
Last reviewed: July 2025