Bra Size Calculator
Find your perfect fit in seconds with our smart bra sizing tool. Just enter your bust and band measurements and get accurate results tailored for the US, UK, EU and more. For best accuracy measure carefully using inches or centimeters.
The bust size is the loose circumference measured around the chest over the fullest part of the breasts.
The band size is the firm circumference measured directly underneath the breasts.
Enter your measurements and click Calculate to see results.
| US / Canada | |
| United Kingdom | |
| EU (EN 13402) | |
| France / Belgium / Spain | |
| Australia / New Zealand |
Bra Size Converter
Convert bra sizes between different locations.
Band Size Reference
| Size | FR/BE/ES | EU | US & UK | AU/NZ |
|---|
Cup Size Reference
| Difference (in) | US Cup | UK/AU Cup |
|---|
Bra Size Calculator: How to Find the Right Size
It can be hard to know what size bra to wear but it’s really easy once you know how. Using a bra size calculator you can measure yourself at home and find the right size for a comfortable fit.
It’s important to wear the right size. It makes you feel more comfortable, helps you stand up straight, and makes your clothes fit better. We will use simple words to explain.
Why Use a Bra Size Calculator?
A lot of women wear the incorrect bra size because they don’t know how to measure themselves. A bra size calculator helps with this by providing an instant and accurate answer.
Here’s why it is useful:
- Saves time and effort
- Gives better fitting results
- Reduces discomfort and pain
- Makes shopping for a bra easier
Rather than guessing, you can know for sure.
How to Calculate Bra Size at Home
If you are wondering how to calculate bra size, here’s what you need to do:
1. Measure Your Band Size
- Wear a non-padded bra
- Place the measuring tape under your bust
- Make sure it’s snug but not too snug
2. Measure Your Bust Size
- Wrap the tape around the largest part of your bust
- Make sure the tape is straight and not too tight
3. Use the Formula
Cup Size = Bust Size – Band Size
Example:
Bust = 38 inches
Band = 34 inches
Difference = 4 inches → Cup Size = D
Final Size = 34D
You can also use a tool to get this result instantly without doing the math yourself.
Bra Size Guide Calculator Table
This table will help you get an idea of cup sizes: This bra size tool table is useful if you just need a rough estimate of your size
|
Size |
FR/BE/ES |
EU |
US & UK |
AU/NZ |
|
XXS |
75 |
60 |
28 |
6 |
|
XS |
80 |
65 |
30 |
8 |
|
S |
85 |
70 |
32 |
10 |
|
M |
90 |
75 |
34 |
12 |
|
L |
95 |
80 |
36 |
14 |
|
XL |
100 |
85 |
38 |
16 |
|
XXL |
105 |
90 |
40 |
18 |
|
3XL |
110 |
95 |
42 |
20 |
|
4XL |
115 |
100 |
44 |
22 |
|
5XL |
120 |
105 |
46 |
24 |
Understanding Different Size Systems
Different countries have different bra sizes. A Bra Size Calculator USA may be different to Europe or Australia.
|
Region |
Example Size |
|
USA / Canada |
34D |
|
UK |
34D |
|
EU |
75D |
|
Australia |
12D |
That’s why it’s important to use a Bra Size Calculator that allows you to select your region when buying online.
Common Mistakes While Measuring
When measuring for bra size, don’t:
- Pulling the tape too tight
- Measuring over padded bras
- Rounding numbers
- Measuring at an angle
These little mistakes can alter your size.
How to Tell if You’re Wearing the Wrong Size
If your bra is not the right size you may experience:
- Shoulder straps digging in
- Band riding up at the back
- Cups too tight or overflowing
- Center not lying flat
A bra size calculator can help correct these problems.
Tips for Getting Accurate Results
To get the best results:
- Stand in front of a mirror
- Keep the measuring tape level
- Breathe normally
- Measure more than once
An accurate bra size calculator relies on accurate measurements, so be patient.
Why Wearing the Right Bra Size is Important
Wearing the right bra size will:
- Better comfort throughout the day
- Improved posture
- Less back and shoulder pain
- Clothes fitting more smoothly
That’s why it’s useful to use a Bra Size Calculator USA before purchasing new bras.
When Should You Measure Again?
Your body will change, so you should recalculate your bra size when:
- Your weight changes
- During or after pregnancy
- Monthly body changes
- After a long time
Regularly measuring your size ensures a good fit.
FAQs
Q1. How often should I use a bra size calculator?
Every 3-6 months or when your body changes.
Q2. Can I calculate bra size without a tool?
Yes, but it’s quicker with a tool.
Q3. Do all brands have the same bra size?
No, sizes can vary between brands, so try on different brands.
Q4. What is the most common bra sizing error?
The most common error is a loose band and small cup.
Q5. Can I use a bra size device?
Yes, it’s easy and effective if you have the right measurements.
Final Thoughts
Getting the right bra size is easy. A bra size calculator makes it easy to get the right size and feel better all the time. Measure, calculate and check your size often. It will make a difference in your comfort and appearance.
