Claire Bennett spent over a decade fitting women in specialty lingerie boutiques before she built this site — and almost everything here traces back to something she saw happen in a fitting room, over and over.
The Problem She Kept Seeing
Most women who came into the store had never actually been measured. They’d picked a size based on what they’d always worn, or what a size chart online had told them years earlier. More often than not, the number was wrong — not because anything was wrong with them, but because bra sizing changes with weight, age, pregnancy, and even the specific brand.
Why She Built This Site
Not everyone has access to an in-store fitting, and not everyone wants one. Claire built Bra Size Calculator so anyone could get the same measure-first approach she used in-store — free, private, and without a salesperson standing over their shoulder. Every calculator on this site starts from the same two measurements a professional fitter would take.
What She Won’t Do
Claire doesn’t hold a medical or clinical certification, and she’s upfront about that — her expertise comes from years of hands-on fitting experience, not a diagnostic background. If a fit problem sounds medical (persistent pain, a sudden size change, or anything else out of the ordinary) the honest answer is always to see a doctor, not a calculator.
How the Site Is Run Today
Claire still writes and reviews the guides here herself, alongside a small team that helps keep size charts and brand comparisons up to date. Every tool shows its work — you can always see exactly how a result was calculated, not just the final number.
Why Calculators, Not Just In-Store Fittings
A good in-store fitting works — when you can get one, and when the fitter measuring you actually knows what they’re doing. Claire saw both sides of that inconsistency for years: some fittings were excellent, others were rushed or wrong in ways that sent someone home in the wrong size anyway. Calculators can’t replace a skilled fitter’s eye, but they can guarantee a consistent, repeatable starting measurement every time — something even a good fitting room visit doesn’t always deliver.
No Fake Credentials, on Purpose
Claire is not a doctor, a clinician, or a certified anything in the medical sense — bra fitting doesn’t have a standardized certification body the way some fields do, and she’s not going to invent one to sound more official. What she has is a decade of hands-on fitting experience and a habit of explaining her reasoning instead of just handing over a number. Every calculator on this site reflects that: show the measurement, show the math, let you decide.
What Makes This Different From a Generic Algorithm
Most online bra calculators are built by developers who’ve never fitted a real person and just coded up a formula from a chart. This site was built the other direction — starting from thousands of real fitting-room conversations, then turning that pattern recognition into calculators that explain themselves instead of outputting a mystery number.
Why Claire Started With Calculators, Not Just Content
After years of watching customers leave a fitting session confident, then lose that confidence the next time they shopped without an expert nearby, Claire wanted something that traveled with people — a tool, not just an article, that applied the same method she used in-store.
What “No Fake Credentials” Actually Means Here
Claire doesn’t claim a clinical or medical background because she doesn’t have one — her expertise comes from thousands of real in-store fittings, not a certification body. Every page on this site is written from that specific, honestly-described experience rather than borrowed authority.
There's no standardized certification body for bra fitting the way there is for some professions — Claire's credibility comes from 10+ years of hands-on, in-store fitting experience, not a certificate.
Yes — every tool reflects the same measure-first, show-your-work approach she used fitting women in person.
To reach far more people than one store ever could, and to make a consistent, repeatable measurement available to anyone, not just people near a good fitter.
Yes — see the Contact page for the best way to reach the team behind this site.
The content reflects her fitting-room methodology and voice consistently across the site, built out to cover far more specific situations than any one person could individually field in a boutique.
Her in-store fittings were always free to the customer as part of the shopping experience — keeping the calculators free online continues that same approach rather than introducing a new paywall.
The core method — measure first, explain the reasoning, never guess — has stayed the same; only the format (tools instead of in-person conversations) has changed.