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Brand sizing guide

Soma Size Guide

Soma’s published bra size chart and measuring advice, its size range, and how its chart differs from our calculator.

Official size guide (opens in a new tab) Check My Fit

Scope: Bras, bralettes and sports bras on Soma’s US website. Brand pages checked:

A

Which size labels does Soma use?

US website
Cup sizes use US letters A, B, C, D, DD, DDD, G and H, with no E or F. Source (opens in a new tab)

Rule of thumb: use the sizing system shown on the product page you are buying from, and check it against Soma’s guide for that storefront.

B

Published size range

Bras
Bands 32 to 44, cups A to H
Bralettes and sports bras
Bands 30 to 44, cups A to G
C

What Soma says about fit

  • Measuring: Soma asks you to measure snugly where your bra band sits and round up to the nearest half inch, then measure the bust at nipple level and round to the nearest half inch.
  • Its chart: Soma’s chart maps underbust ranges to bands that are larger than the measurement at smaller sizes (for example 29 to 30½ inches is a 34 band), and starts the cup count from the band, with an A cup when bust equals band.
Section D · Converting

Converting a size for Soma?

We did not find an official Soma conversion to UK or EU sizes. Soma’s US letters match the usual US sequence our converter uses (DD, DDD, G, H).

Convert a size
Section E · Corrections

Spotted something out of date?

Brands update their sizing pages. Tell us and we will re-check this guide against Soma’s official pages.

Report a correction

Official Soma links

Frequently asked questions

Does Soma use UK or US sizing?

US website: Cup sizes use US letters A, B, C, D, DD, DDD, G and H, with no E or F.

What size range does Soma make?

Bras: Bands 32 to 44, cups A to H. Bralettes and sports bras: Bands 30 to 44, cups A to G.

Does Soma run small or large?

We do not publish “runs small” or “runs large” claims unless the brand itself says so, and we have not tested Soma bras. Start with your usual size in the sizing system the product uses, then use the fit checker to decide what to change.

How do I convert my size for Soma?

We did not find an official Soma conversion to UK or EU sizes. Soma’s US letters match the usual US sequence our converter uses (DD, DDD, G, H). You can also use our bra size converter.

Sources and review status

Sources last checked: . This guide summarizes Soma’s own published information. It is not a product review, and Bra Size has no relationship with Soma.

Spotted something that looks wrong? Report a correction or read our sizing method.