Bra Size Converter: How To Get The Perfect Size Every Time

Bra Size Converter - Enough it enough! We’re sick and tired of guessing our bra sizes and constantly coming up short when it comes to getting the right fit.

bra size converter

Statistics say that 80% of women are wearing the wrong size bra and that simply won’t do.

Once and for all, we’re setting the record straight and giving you the scoop on how to determine your bra size and set yourself up for the best chance for success when it comes to buying the right bra for your shape.

Don’t keep these secrets to yourself - share the knowledge with all of your girlfriends to help lower the statistics and get as many women as possible into their best bras yet. Here’s how to do it...

Did You Know?

U.S., Canadian and U.K. sizing is similar...these countries use the Imperial sizing system, which if you live in North America, you're probably most familiar with.

So, if you wear a C cup bra in the UK, you'll most likely wear a C cup in the United States and Canada.

Bra Size Converter Tip #1: Measure Properly

bra fitting

You’ll never stand a chance of getting the size right if you’re working with inaccurate bra measurements.

Find a time when you can focus on getting it right and ensure the best fit.

Work with a proper tape measure; keep it lying smooth across your skin, not pinching too tight, or hanging slack and loose.

Use a full-length mirror to make sure the measuring tape is parallel to the ground all the way around your body.

U.S. & Canadian Guidelines

Size Bust Cup Waist Hips Dress
XSmall 28-30 AA-A 20-22 32-34 4-6
Small 30-32 A-B 22-24 34-36 6-8
Medium 32-34 B-C 24-26 36-38 8-12
Large 34-36 C 26-28 38-40 12-14
XLarge 36-38 C-D 28-30 40-42 14-16
1X 38-40 C-D 30-34 42-44 16-18
2X 40-42 D-E 34-38 44-46 18-20
3X 42-44 D-E 38-42 46-50 20-22

Bra Size Converter Tip #2: Know The Basics

bra fit

While there are some subtle nuances to fitting a bra, here are the basic bra size converter rules.

  1. Measure your bra band size just below your bust, in inches.
  2. Add 4 to that number if it’s even, add 5 if it’s odd. For example, a 30” measurement would convert to a 34” bra band. A 33” measurement would correspond to a 38” band.
  3. After you’ve determined your band size, take your bust measurements, right around the fullest part of your breasts.
  4. Subtract your band measurement from your bust and see what number you get. If there is a 1” difference you’re an A cup. A 2” difference is a B cup, 3” is a C cup, and so on. If the difference in the two measurements is less than 1”, you’re a AA cup.

Size Secrets...

France and most European countries, on the other hand use the Metric system. So, for example if your bra band size is a 36” (inches) in Canada, in France it is 95 cm (centimeters).

Italy uses a completely different system based on the Metric system. And, Australia uses a system based on dress sizes.

Bra Size Converter Tip #3: Keep Your Ratio Intact

Sizing Secrets

French lingerie tends to fit on the smaller side as French women are smaller.

If you try a bra in your size and it’s not quite  the right fit, try a sister size.

This means that you keep the same band-to-cup ratio, just up or down a size.

Add or subtract one band size and do the same with the cup size. For example, if you’re a 36C normally, the sister sizes would be 34B or 38D.

You’ll have a better chance of success when trying a sister size in the same ratio than you would if you just increase or decrease one of the measurements, which can throw off your proportions.

Bra Conversion Chart

U.S.A. Canada U.K. Europe France Italy Australia
30 30 30
32 32 32 70 85 1 10
34 34 34 75 90 2 12
36 36 36 80 95 3 14
38 38 38 85 100 4 16
40 40 40 90 105 5 18
42 42 42

brassiere

Bra Size Converter Tip #4: Avoid The Pitfalls

The most common sizing problem is that women are wearing a bra that’s too small in the cups and too loose in the bra band.

A woman wearing a 36C might try a 34D as a starting point for getting a better fit. The snugger bra band will give you more support and a larger cup allows your entire breast to be covered, avoiding embarrassing side or top spillage.

Cup Conversion Chart

U.S.A. Canada U.K. France Europe Italy Australia
AA AA AA AA AA
A A A A A A A
B B B B B B
or nothing
B
C C C C C C C
D D D D D D D
DD DD DD E E DD DD
DDD
or E
DDD
or E
E F F E
F F F F
G G G
GG GG GG
H H H
HH HH HH
J J J

Bra Size Converter Tip #5: Be Aware Of Global Sizing

It’s fun to treat yourself to some new lingerie when traveling to a different country, as a special souvenir and a way to enjoy new and fresh designs, but you can easily run into problems when trying to choose the right size bra.

Different countries use different standard sizing so familiarize yourself with the bra sizes of the country you’re visiting. Bras in the UK will fit differently than a French, Japanese or Australian bra.

Your best bet is to refer to an international bra size conversion chart or to simply get re-measured by a salesperson while you’re abroad.

Panty Size Conversion Chart

Panty and Thong Sizes
U.S. & Canada French European
4 XS 38 36
5 S 40 38
6 M 42 40
7 L 44 42
8 XL 46 44
9 XXL 48 46

Beautiful Lingerie > Bra Fitting

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