Home » Lifestyle

How to Shop for Vintage Clothing: A Modern Guide to Vintage Sizing

Understand the nuances of vintage clothing sizes, how to measure for the perfect fit, and confidently navigate the world of vintage shopping.

By Sneha Tete, Integrated MA, Certified Relationship Coach

Created on Jun 28, 2025

Understand the nuances of vintage clothing sizes, how to measure for the perfect fit, and confidently navigate the world of vintage shopping.

How to Shop for Vintage Clothing: Understanding Vintage Sizing

Shopping for vintage clothing is a treasure hunt filled with unique finds and stories from past decades. However, the thrill of discovering the perfect retro dress, jacket, or pair of jeans can be dampened by confusion over sizing. Vintage clothing sizes often differ dramatically from today’s sizing standards, making it essential to understand how vintage sizing works and how to accurately measure yourself for the best fit.

Why Are Vintage Sizes Different From Modern Sizes?

One of the first things new vintage shoppers notice is that the numbers on the tags can be quite different from what they’re used to seeing in contemporary retail stores. The difference between vintage and modern sizing is rooted in historical shifts in fashion, marketing, and manufacturing:

Vanity Sizing: Over the years, clothing manufacturers have gradually shifted sizing to make consumers feel better in smaller-numbered garments. This practice, called vanity sizing, has resulted in a size 12 from the 1950s or 1960s corresponding to a much smaller modern size—sometimes as small as a size 6 or even 4 today.
Decade Variations: Sizing changes did not happen all at once. Garments from the 1950s and 1960s tend to run the smallest relative to today’s equivalent, while those from the 1970s are slightly closer to modern interpretations. Items from the 1980s and 1990s may only be off by a size or two.
Brand and Store Differences: Sizing standards vary by brand and even by individual stores, both then and now. This means that a so-called ‘size small’ dress from one vintage shop may not fit like a ‘small’ at your favorite modern clothing store.
No Universal Standard: Before ready-to-wear mass production, many garments were custom-made or tailored, further complicating efforts to match modern sizes with vintage finds.

You might hear that a celebrity like Marilyn Monroe wore a vintage size 12-14, but in today’s sizing, she would likely be considered a size 6 or even a 4 in some brands. As a general rule:

Add about 6 to your current dress size to convert to the likely equivalent in a 1950s or 1960s dress.
Expect to size up by about 4 sizes for the 1970s.
For 1980s and 1990s vintage clothing, expect to go up 1–2 sizes compared to your modern size.

Always remember: A vintage size on a tag is just a number. Relying solely on the tag size is rarely effective—different sizing conventions and changes in body ideals over time mean that the only way to ensure a proper fit is to know your measurements and compare them to the item’s listed dimensions.

How to Take Your Own Measurements (For Vintage Shopping)

The golden rule in vintage shopping? Buy based on measurements, not the stated size! Learning to accurately measure yourself is a vital step toward building your dream vintage wardrobe.

Essential Tools:

Soft measuring tape (ideally fabric or tailor’s tape)
A full-length mirror
Pen and paper (or notes app) for recording your measurements

How to Measure Yourself:

Bust: Measure around the fullest part of your bust, keeping the tape snug but not too tight. Do this while wearing your usual undergarments.
Waist: Find your natural waist—this is typically just above your belly button and is the narrowest part of your torso. Relax and measure around this point.
Hips: Stand with your feet together. Measure around the fullest part of your hips, usually 7–9 inches below your waist (this spot varies by individual).
Shoulders (for jackets and dresses): Measure from the edge of one shoulder across the back to the other edge, following the natural curve.
Sleeves (for tops and dresses): Measure from the top of your shoulder (where the seam meets the sleeve) down to your wrist.
Length (for dresses, coats): Measure from the top of your shoulder (where your neck meets your shoulder) down to where you want the hem to fall.
Inseam (for pants): Measure from the crotch seam down the inside of the leg to the ankle/bottom hem.

Tip: Add an extra inch or more if you prefer your clothing to fit a bit loose. For fitted vintage styles, you might stick exactly to your measurements or add just a half inch in the bust or waist, depending on comfort preferences.

Measurement Table (Example):

Body Area	How to Measure	Typical Clothing Item
Bust	Fullest point, underarms, with bra	Tops & Dresses
Waist	Smallest natural waist area, above belly button	Skirts, Pants, Dresses
Hips	Fullest part, feet together	Pants, Skirts, Dresses
Shoulders	Edge to edge across back	Jackets, Blouses
Inseam	Inside leg from crotch to hem	Pants, Jumpsuits

Decoding Vintage Size Labels by Decade

Once you understand how your personal measurements compare to listed garment numbers, it’s helpful to know how sizing labels have evolved. Here’s what you can usually expect by decade:

Decade	Typical Sizing Conversion	Notes
1950s–1960s	Modern size + 6	Very petite by today’s standards
1970s	Modern size + 4	Less drastic jump; some overlap with early 80s
1980s–1990s	Modern size + 1 to 2	Closer to what you’d find today

If you usually wear a size 4 in contemporary brands, don’t be alarmed by seeing a size 10 or 12 on a 1960s vintage label—odds are, it will fit similarly.

Why You Should Trust Measurements—Not Tag Sizes

Vintage shopping can be unpredictable because:

Garments have often been altered: Previous owners may have taken in seams or added darts for a custom fit.
Materials may change after decades: Natural fibers like cotton or wool may shrink after years of washing and wearing, altering the fit.
Fashion norms were different: Many older garments were designed for different body proportions or intended to be worn with different foundation garments (e.g., girdles, full skirts).

This is why sizing estimates such as “Small”, “Medium”, or “Large” are only approximations in the world of vintage. Take a seller’s estimate as just that: an educated guess. For a wardrobe that feels as good as it looks, compare your measurements directly to those listed in the garment description.

How Vintage Sellers Measure Garments

Reputable vintage sellers usually list flat measurements for every garment. Here’s what those mean:

Flat measurements are taken with the garment laid flat, not stretched or pulled taut.
Bust, Waist, and Hip measurements are typically measured across the front and then doubled to reflect the full circumference.
Inseams and sleeve lengths are measured from seam to seam as outlined above.

To ensure accuracy, compare measurements with items you already own that fit you well.

Example Vintage Dress Measurements:

Bust: 36” (laid flat, then doubled)
Waist: 28”
Hips: 40”
Length from shoulder: 42”

If your bust is 35″, your waist 27” and your hips 39”, this dress would be a close, slightly relaxed fit—great for comfort or layering.

Practical Tips for Successful Vintage Shopping

Record your current measurements in inches and centimeters for handy reference when shopping online.
Read garment descriptions carefully, paying attention to the measurements given rather than estimated size labels.
Look for return policies, especially if you’re shopping online and can’t try on the garment before buying.
Don’t be afraid to ask questions! Good sellers will provide additional measurements or fitting advice if you contact them.
Consider alterations: Vintage garments can often be tailored to fit you perfectly if you find a piece you love that’s a bit off in certain areas.
Try items on whenever possible, especially at local shops and thrift stores.
Be patient; building a vintage wardrobe can take time but is well worth the effort for both uniqueness and sustainability.

Understanding Vintage Size Charts

Some shops provide their own vintage size charts as a general guide. Below is an example blending sizing norms from several vintage retailers:

Vintage Label Size	Bust (inches)	Natural Waist (inches)	Hip (inches)	Modern Size (approx.)
XS / 0	33	25	35	00 – 0
S / 4	35	27	37	2 – 4
M / 8	37	29	39	6 – 8
L / 12	39	31	41	10 – 12
XL / 16	42	34	44	14 – 16

Use these charts as starting points rather than strict rules. When shopping for men’s vintage clothing, similar conversion issues apply, especially for shirts and jackets.

Frequently Asked Questions (FAQs)

Q: Why do vintage tag sizes seem so much larger than modern sizes?

A: Vanity sizing and the shift in sizing standards mean that a size 12 from the 1950s resembles today’s size 6 or even 4. Always compare measurements instead of relying on the size tag.

Q: How can I be sure a vintage garment will fit me if I can’t try it on?

A: Use your body measurements and compare them directly to the listed garment measurements. If in doubt, contact the seller for more details or sizing advice.

Q: Are measurements listed for vintage items the same as modern clothes?

A: Not always. Many vintage garments list only the tag size, which is often misleading. Reputable sellers provide exact flat measurements for bust, waist, hips, and more—these are the most trustworthy data for ensuring a good fit.

Q: What if my measurements are between two sizes or don’t match exactly?

A: Size up if you prefer a relaxed fit, or choose the closest match and consider tailoring. It’s better for a vintage garment to be a bit too large (add a belt!) than too small, especially since alterations are easier to take clothing in than let it out.

Q: Do different countries or eras use different sizing systems?

A: Yes. UK, US, and European vintage clothing can all have different sizing scales. Always look for measurements in inches or centimeters, and when in doubt, ask for a conversion.

Q: Can vintage clothes be tailored?

A: Most vintage clothes can be altered by a skilled tailor. However, keep in mind the age, fabric, and seam allowances before purchasing with the intention to alter.

Wrap-Up: Your Guide to Vintage Shopping Success

Vintage fashion invites you to explore creativity, individuality, and sustainability—but proper fit is the key to building a wardrobe you’ll truly love. By understanding the difference between vintage and modern sizes, mastering your own measurements, and seeking out exact measurement listings, you’ll take the guesswork out of vintage shopping and ensure every purchase is a winner.

Final tip: Keep a note on your phone or carry a card with your measurements. With this knowledge, you’ll hunt for vintage treasures with the confidence, expertise, and joy of a true vintage enthusiast!