bra size calculator
Finding the right bra size is a game-changer. A well-fitting bra not only provides comfort and support but also enhances your posture and confidence. Yet, countless individuals wear the wrong size, leading to discomfort, poor fit, and even health issues.
That’s where the SahajTools Bra Size Calculator comes in. Designed to be your go-to online tool, our calculator helps you accurately determine your perfect bra size in minutes, no matter where you are in the world.
Band Size
Bust Size
Why Bra Size Matters (More Than You Think!)
A correctly fitting bra can:
- Improve Comfort: No more digging straps, gaping cups, or a band riding up.
- Provide Proper Support: Reduces back and shoulder pain, especially for those with larger busts.
- Enhance Silhouette: A well-fitting bra creates a smoother, more flattering shape under your clothes.
- Boost Confidence: When you feel good, you look good!
How Our Bra Size Calculator Works: Simple Steps to Your Perfect Fit
Our intuitive Bra Size Calculator is designed for ease of use and accuracy. Here’s how to use it:
- Choose Your Unit: Start by selecting your preferred measurement unit: Inches or Cm. Our smart toggles make switching between them effortless.
- Select Your Region: Bra sizing can vary significantly across countries. Our calculator accounts for this by offering a Region dropdown. Choose your region (e.g., United States, UK, EU, Australia, etc.) to ensure the most accurate result based on local sizing conventions.
- Enter Your Band Size: Take a snug measurement directly under your bust, keeping the tape level. Input this measurement into the “Band Size” field.
- Enter Your Bust Size: Measure around the fullest part of your bust, ensuring the tape is level across your back. Enter this measurement into the “Bust Size” field.
- Click “Calculate”: Our powerful algorithm will instantly process your measurements.
- View Your Bra Size: The result section will clearly display “Your Bra Size is: [e.g., 34FF] (United States sizing)” along with the specific region you selected.
- Discover Alternative Fits: We go a step further! Our calculator also suggests alternative fits like “Snug Fit” (e.g., 32G) and “Roomy Fit” (e.g., 36F). This helps you find a size that best suits your personal preference for comfort and support.
- Need a fresh start? Just click the “Reset” button to clear all fields.
Understanding Your Measurements: Band vs. Bust
To ensure you get the most accurate results from any bra size calculator, it’s crucial to understand the two core measurements:
- Band Size (Underbust): This measurement forms the foundation of your bra’s support. It’s taken snugly around your rib cage, directly under your bust. The band provides about 80-90% of your bra’s support, so getting this right is paramount.
- Bust Size (Overbust): This measurement is taken around the fullest part of your bust, often at the nipple line. The difference between your band size and bust size helps determine your cup size.
Regional Bra Sizing: Why It Matters
Did you know a ‘C’ cup in the US isn’t necessarily the same as a ‘C’ cup in the UK or EU? Bra sizing systems differ globally. For example:
- United States (US): Uses common single and double letters (A, B, C, D, DD, DDD, G, H, etc.).
- United Kingdom (UK): Often uses single letters and sometimes introduces ‘half’ sizes or continues with F, FF, G, GG, etc.
- European Union (EU): Uses centimeters for band sizes (e.g., 70, 75, 80) and typically single letters for cups.
- Australia (AU): Often mirrors US sizing, but sometimes uses a different progression.
Our Bra Size Calculator takes these regional nuances into account, providing you with a size specifically tailored to your chosen region.
Tips for Accurate Bra Measurement
- Use a Soft Measuring Tape: A flexible, fabric tape measure is ideal.
- Measure Barefoot (or in a thin bra): For the most accurate results, measure directly against your skin or while wearing a very thin, non-padded bra.
- Keep the Tape Level: Ensure the measuring tape is parallel to the floor around your entire torso for both band and bust measurements.
- Breathe Normally: Don’t hold your breath or suck in your stomach.
- Measure Snugly for Band: The band should be firm but not uncomfortable.
- Measure Loosely for Bust: The bust measurement should be relaxed over the fullest part of your chest.
- Consider a Second Opinion: If possible, have someone help you to ensure the tape is level.
- Remaster Regularly: Your body changes! Re-measure your bra size every 6-12 months, or after significant weight changes, pregnancy, or breastfeeding.
Global Bra Size Conversion Chart: Your Guide to International Sizing
Navigating bra sizes can be confusing, as different countries use different measurement systems and sizing conventions. This comprehensive conversion chart will help you understand how sizes compare across major regions.
How to Use This Chart:
- First, determine your bra size using our Bra Size Calculator. This will give you your accurate measurements and initial bra size in a specific region (e.g., US or UK).
- Find your known bra size in the corresponding column.
- Look across the row to find your equivalent size in other regions.
Important Considerations:
- Band Sizes: Generally correspond to underbust measurements, but the numbers themselves differ (e.g., US/UK use inches, EU uses centimeters).
- Cup Sizes: These are where the biggest differences lie. A ‘D’ cup in one country may not be the same volume as a ‘D’ cup in another. Our chart aims to provide the closest equivalents.
- Sister Sizes: Remember that if a size isn’t quite right, you can often find a good fit in a “sister size” (e.g., a 34C can be a sister size to a 32D or 36B). This chart doesn’t include sister sizes, but our calculator’s alternative fit suggestions help with that!
- Brand Variations: This chart is a general guide. Individual brands might have slightly different interpretations of these standards.
Bra Band Size Conversion
| US / UK | EU / Japan | France / Spain / Belgium | Australia / New Zealand | Italy |
|---|---|---|---|---|
| 28 | 60 | 75 | 6 | 0 |
| 30 | 65 | 80 | 8 | 0 |
| 32 | 70 | 85 | 10 | 1 |
| 34 | 75 | 90 | 12 | 2 |
| 36 | 80 | 95 | 14 | 3 |
| 38 | 85 | 100 | 16 | 4 |
| 40 | 90 | 105 | 18 | 5 |
| 42 | 95 | 110 | 20 | 6 |
| 44 | 100 | 115 | 22 | 7 |
| 46 | 105 | 120 | 24 | 8 |
| 48 | 110 | 125 | 26 | 9 |
Bra Cup Size Conversion (Based on Equivalent Volume)
| US | UK | EU / China / Japan | France / Spain / Belgium | Australia / New Zealand | Italy |
|---|---|---|---|---|---|
| AA | AA | AA | AA | AA | AA |
| A | A | A | A | A | A |
| B | B | B | B | B | B |
| C | C | C | C | C | C |
| D | D | D | D | D | D |
| DD / E | DD | E | E | DD / E | E |
| DDD / F | E | F | F | E / F | F |
| G | F | G | G | F / FF | G |
| H | FF | H | H | G | H |
| I | G | I | I | GG | I |
| J | GG | J | J | H | J |
| K | H | K | K | HH | K |
| L | HH | L | L | J | L |
Frequently Asked Questions (FAQs) About Bra Sizing
The band should be snug and level across your back. The cups should fully encapsulate your breast tissue without gaping, spilling, or wrinkling. The center gore (the piece between the cups) should lie flat against your sternum. Straps should provide minimal support and not dig into your shoulders.
Our alternative fit suggestions (snug/roomy) are perfect for this! Try both the calculated size and the suggested alternatives to see what feels best. Comfort is key.
While our calculator provides a foundational size, sports bras and maternity bras often have specialized sizing or fit considerations. It's always best to check the specific brand's sizing guide for these types of bras after getting your base measurement.
Absolutely! Many people wear the wrong size. Our calculator uses a precise methodology. Trust the numbers and try on bras in your calculated size. You might be surprised by the comfort and support you discover.
Yes, even small weight changes can impact your bra size, particularly your band and bust measurements. It's a good idea to re-measure if your weight changes significantly.
Our bra size calculator is a fantastic starting point for finding your best fit! It uses widely accepted measurement methods and incorporates international equivalences to give you a highly accurate estimate. While it's a powerful tool, remember that every body is unique, and sometimes trying on a few different sizes or getting a professional fitting can help confirm your perfect comfort and style.
Our calculator is designed to support a broad spectrum of sizes for both inches and centimeters:
- Inches: We cover band and bust sizes ranging from 28 to 68 inches.
- Centimeters: For metric users, we support band sizes from 60 to 185 cm and bust sizes from 70 to 200 cm.
Absolutely! We know that bra sizing varies across the globe. Our calculator supports widely accepted equivalences for popular regions including the United States (US), United Kingdom (UK), European Union (EU), Australia/New Zealand (AUS), France (FR), Italy (IT), and Japan (JP). This makes international bra shopping much simpler!
Our calculator provides a standardized size based on your measurements and the conventions of your chosen region. While we offer highly accurate regional equivalences, it's worth noting that individual bra brands might have slight variations in their fit. Think of your calculated size as an excellent guide, and if you have a specific brand in mind, it's always a good idea to cross-reference with their unique size chart as well!
Yes, you can! For your convenience, your last calculated bra size and selected options are automatically saved right in your browser's session storage. This means if you close and reopen your browser, your results should still be there, waiting for you!
Ready to Discover Your True Bra Size?
Stop guessing and start experiencing the difference a perfect fit makes. Use the SahajTools Bra Size Calculator today and step into comfort and confidence!