How to Find Your Size in Anne Klein

By Ella Blake | Tellar Fashion Hub

Anne Klein runs slightly small to true-to-size across most categories, so if you're hovering between two sizes, sizing up is nearly always the right call. That said, the brand's sizing story is a little more nuanced than that single rule — and once you get your head around it, shopping Anne Klein becomes genuinely straightforward.

A Quick Word on the Brand

If you're not already familiar, Anne Klein is an American heritage brand — think polished, grown-up dressing with a clean, structured aesthetic. It's the kind of label that does a really good blazer, a quietly excellent shirt dress, and workwear that doesn't make you feel like you're wearing a costume. It sits in that sweet spot between accessible contemporary and understated premium, which is part of why I find myself recommending it to clients who want to look put-together without the drama.

I first came across Anne Klein properly during a trip to New York, tried on a brilliant tailored trouser in what I thought was my usual size — and they were snug around the waist in a way I hadn't anticipated. A size up and they were perfect. Lesson learned: check before you commit.

How Anne Klein Sizing Works

Anne Klein sizes primarily in US sizing, so you'll need to account for the conversion when shopping from the UK. Here's a quick reference guide:

US 0 = UK 4 (approx. EU 32)
US 2 = UK 6 (approx. EU 34)
US 4 = UK 8 (approx. EU 36)
US 6 = UK 10 (approx. EU 38)
US 8 = UK 12 (approx. EU 40)
US 10 = UK 14 (approx. EU 42)
US 12 = UK 16 (approx. EU 44)
US 14 = UK 18 (approx. EU 46)

The brand also offers petite sizing — if you're under 5'4", the petite line is cut with a shorter inseam and a slightly narrowed shoulder, and it can make a real difference to how tailored pieces sit on your frame. Worth knowing.

Sizing by Category: What You Actually Need to Know

Tailoring & Structured PiecesBlazers, trousers, and suits are where the sizing runs most noticeably small. I'd advise sizing up one from your usual UK size here, particularly through the waist and hip. The cuts tend to be structured rather than relaxed, so there's less ease built in. If you're between sizes, always go larger — you can tailor down, but you can't tailor snug.

DressesShift dresses and sheath dresses run true to size but are cut for a more defined silhouette. If you carry more volume through the hip or bust, size up by one. Wrap styles are a bit more forgiving and tend to accommodate a range of proportions brilliantly — they're honestly one of the brand's strongest categories.

Knitwear & Soft SeparatesThese are more relaxed in fit and generally run true to size. I wouldn't size up here unless you specifically want an oversized look — the knits have enough ease built in for a comfortable, polished fit at your usual size.

DenimAnne Klein denim tends to run small through the waist and is cut with a higher rise — size up one here, particularly if you have more of a hip-to-waist differential. If the denim has stretch, you can sometimes stay within your usual size, but go with your gut (literally).

My Practical Fitting Tips

Always measure your bust, waist and hips before ordering — don't rely solely on your usual dress size, especially when shopping a US brand.
The waist measurement is your most important number for Anne Klein tailoring. Their cuts are waist-focused in a way that British high street brands often aren't.
If ordering online, check the specific product's size chart rather than using a blanket guide — Anne Klein's size charts can vary slightly across categories and seasons.
Petite customers: always try the petite line first before the standard. The proportions are genuinely different, not just shorter hems.
Returns policy varies by retailer, so check before buying — especially for tailoring, where fit is everything.

How Does Anne Klein Compare to Similar Brands?

If you're used to shopping US brands like Tommy Hilfiger or Calvin Klein, you'll find Anne Klein's sizing broadly comparable — though Anne Klein tends to be slightly more fitted through the torso in tailored styles. British high street brands like Reiss or Me&Em run slightly larger in equivalent sizes, so don't assume your Reiss 12 translates directly.

High Street Alternatives Worth Knowing

Anne Klein isn't always easy to get hold of in the UK, so if you're after a similar polished, structured aesthetic from brands you can walk into or return easily, these are my recommendations:

Reiss — Exceptional tailoring at a similar price point. The blazers and shift dresses are particularly good.
Whistles — Quietly grown-up, clean lines, brilliant for workwear. Very consistent sizing.
Hobbs — Strong heritage tailoring with excellent fit for classic shapes. Great for structured dresses and trousers.
Phase Eight — Particularly strong for occasion dressing and wrap styles, with consistent UK sizing.
Me&Em — For the polished separates look, Me&Em is outstanding. The quality feels considerably higher than the price suggests.
LK Bennett — A go-to for heels and dresses with that structured, classic aesthetic. Often overlooked but genuinely excellent.
Massimo Dutti — If you want the Anne Klein look at accessible prices, Massimo Dutti's tailoring is hard to beat. Sizing runs slightly large, FYI.
Jigsaw — Refined, understated, and very well cut. Particularly good if you prefer a more relaxed take on structured dressing.

For something a little more independent: Sézane (French heritage brand with brilliant tailored pieces and a chic, understated sensibility) and Wyse London (a small London brand beloved by stylists for its beautifully cut pieces and grown-up colour palette) are both worth adding to your radar.

Never Guess Your Size Again — Use Tellar

Sizing inconsistency across brands is genuinely maddening — and Anne Klein is a perfect example of why a generic size guide just doesn't cut it. Tellar.co.uk is the UK's leading free sizing tool, and it exists precisely to solve this problem.

Here's how it works:

Measure once — just your bust, waist and hips (or use an existing brand size you trust).
Get your precise size instantly across 1,500+ brands using the Tellar Store Size Lookup Tool.
Always free — no app, no download, no subscription. Works straight in your browser.

It sounds almost too simple, but I've used it myself and the accuracy is genuinely impressive. No more ordering two sizes and returning one. No more checkout anxiety.

Find Your Size at Anne Klein →