BH Size Calculator
Wearing the right bra size is essential for comfort, support, and confidence. Unfortunately, studies suggest that most women wear the wrong size bra, often because they don’t measure correctly or sizing differs between brands. The BH Size Calculator solves this problem by giving you an accurate bra size recommendation in just a few steps.
This tool uses two simple measurements—underbust (band) and overbust (bust)—to calculate your bra size. Whether you call it a “bra size calculator” or BH size calculator (as commonly said in Germany and parts of Europe), the process is the same: quick, accurate, and designed to improve your comfort and fit.
🔹 How to Use the BH Size Calculator
Here’s a step-by-step guide to get your correct size:
- Measure Your Band Size (Underbust)
- Place a measuring tape around your ribcage, directly under your breasts.
- Keep it snug but comfortable, and round to the nearest whole number.
- Measure Your Bust Size (Overbust)
- Wrap the tape around the fullest part of your chest.
- Keep the tape level and not too tight.
- Enter Your Measurements
- Input both the band and bust numbers into the calculator.
- Click Calculate
- The tool instantly shows your recommended bra size (e.g., 75B, 80C in EU sizes or 34B, 36C in US sizes).
- Use the Results for Shopping
- Apply your calculated size when buying bras online or in stores.
🔹 Practical Example
Suppose your underbust measurement is 78 cm and your bust measurement is 93 cm.
- Band size (rounded to EU sizing) = 80
- Bust difference = 93 – 78 = 15 cm
- A 15 cm difference corresponds to a C cup in European sizing.
👉 Your bra size (BH size) = 80C (EU) or 36C (US equivalent).
🔹 Benefits of the BH Size Calculator
- ✅ Accurate fit – No more guessing or discomfort
- ✅ International sizing – Helps convert between EU, UK, and US sizes
- ✅ Comfort & health – Prevents back, shoulder, and neck pain
- ✅ Confidence boost – A well-fitting bra improves posture and looks
- ✅ Saves time – Ideal for online shopping without trying on multiple bras
🔹 Features
- Calculates both band and cup sizes
- Works with inches or centimeters
- Offers international size equivalents (EU, UK, US)
- Easy-to-use and beginner-friendly
- Helps you find sister sizes if your exact size isn’t available
🔹 Tips for Accurate Bra Measurements
- 📏 Use a soft measuring tape and measure in front of a mirror.
- 👙 Wear a non-padded bra to avoid extra volume.
- 🧘 Stand upright and breathe normally during measurement.
- 🔁 Take measurements twice for consistency.
- 🌍 Always check conversion charts if buying from international brands.
🔹 Common Use Cases
- Women shopping online who want sizing accuracy
- Teenagers buying their first bra (BH)
- Women adjusting sizes after weight changes, pregnancy, or breastfeeding
- Shoppers comparing EU BH sizes with UK/US bra sizes
- Anyone experiencing discomfort with their current bras
❓ Frequently Asked Questions (FAQ)
1. What does BH stand for?
BH is short for “Büstenhalter,” the German word for bra.
2. How does the BH Size Calculator work?
It uses underbust and bust measurements to calculate your correct band and cup size.
3. What’s the difference between EU, UK, and US bra sizes?
They use different numbering systems for bands and sometimes cups. Always check conversion charts.
4. How do I calculate my cup size?
Subtract band size from bust size. Each cm (EU) or inch (US) difference equals a cup size.
5. Can I use this calculator if I measure in inches?
Yes, the tool works with both inches and centimeters.
6. What if I fall between two sizes?
Try both or look into sister sizes (e.g., 75C ≈ 80B).
7. What are sister sizes?
They are alternative sizes with the same cup volume but a different band size.
8. Should I measure with or without a bra?
Use a non-padded bra for the most accurate results.
9. Can bra size change over time?
Yes—weight changes, pregnancy, and age can all affect size.
10. How often should I measure my BH size?
Every 6–12 months or after noticeable body changes.
11. How do I know if my bra is too small?
Spillage over the cups, underwire discomfort, or straps digging in.
12. How do I know if my bra is too big?
If the band rides up your back or cups gape.
13. Do bra brands fit differently?
Yes, sizing can vary by brand and country.
14. Can wearing the wrong BH size cause pain?
Yes—poor fit can lead to back, shoulder, and neck discomfort.
15. Can I calculate sports bra sizes with this tool?
Yes, though some sports bras use general sizes (S, M, L).
16. What is the average BH size?
It varies by region, but in the EU it’s often around 75C–80C.
17. Do bras stretch over time?
Yes—bands loosen with wear, so buy one that fits snugly at first.
18. How do I make bras last longer?
Hand wash or use a lingerie bag and air dry.
19. Can teenagers use the BH Size Calculator?
Yes, it works for all ages once breast development has started.
20. What’s the biggest benefit of using this tool?
It gives you confidence and comfort by ensuring your bras fit properly.
✅ Final Thoughts
The BH Size Calculator is the easiest way to find your correct bra size, whether you shop in Europe, the US, or online worldwide. By entering just two measurements, you’ll instantly get your band and cup size, plus international conversions if needed.
Stop guessing, stop struggling with discomfort, and start enjoying bras that actually fit.
👉 Try the BH Size Calculator today and find your perfect fit in seconds.