Bra Size Calculator
Find your perfect bra size with our accurate measurement tool
Calculate Your Bra Size
Your Recommended Bra Size:
Complete Guide to Finding Your Perfect Bra Size
Finding the right bra size is crucial for comfort, support, and confidence. Our professional bra size calculator uses the most accurate measurement methods to help you determine your perfect fit. Whether you're shopping for everyday bras, sports bras, or special occasion lingerie, getting the correct size is the foundation of great-fitting undergarments.
Why Accurate Bra Sizing Matters
Studies show that up to 80% of women wear the wrong bra size, leading to discomfort, poor posture, and reduced confidence. An ill-fitting bra can cause shoulder pain, back problems, and even affect your overall appearance in clothing. Our bra size calculator eliminates guesswork by providing precise measurements based on your unique body measurements.
How to Measure Your Bra Size Correctly
For the most accurate results with our bra size calculator, follow these professional fitting guidelines. First, wear a non-padded, well-fitting bra or go braless. Use a soft measuring tape and ensure it's parallel to the ground. Measure your band size by wrapping the tape around your ribcage, just under your bust line, ensuring it's snug but not tight. For your bust measurement, measure around the fullest part of your bust, typically across your nipples.
Perfect Timing
Measure yourself in the evening when your body is at its largest, and avoid measuring during your menstrual cycle when breasts may be swollen.
Professional Help
Consider getting professionally fitted at least once a year, as body changes can affect your bra size over time.
Brand Variations
Remember that sizing can vary between brands, so always try before buying or check specific brand size charts.
Understanding Bra Size Components
Bra sizes consist of two parts: the band size (number) and cup size (letter). The band provides 80% of the bra's support and should fit snugly around your ribcage. Cup sizes represent the difference between your band and bust measurements. Our calculator automatically determines both components for your perfect fit.
Cup Size Reference Chart
| Difference (inches) | Cup Size | Difference (inches) | Cup Size |
|---|---|---|---|
| 1" | A | 6" | F |
| 2" | B | 7" | G |
| 3" | C | 8" | H |
| 4" | D | 9" | I |
| 5" | DD/E | 10" | J |
Signs of a Well-Fitting Bra
After using our bra size calculator, verify the fit by checking these key indicators. The band should sit parallel to the ground and feel snug without digging in. You should be able to slide two fingers under the band comfortably. The cups should contain your entire breast without spillage or gaping. The center gore should lie flat against your sternum, and the underwire should sit in your inframammary fold without poking or pressing.
Common Bra Fitting Mistakes
Many women make these common errors when determining bra size. Wearing a band that's too loose reduces support and causes the bra to ride up. Choosing cups that are too small creates the "double boob" effect, while cups that are too large cause gaping and reduced shape. Our bra size calculator helps avoid these issues by providing precise measurements tailored to your body.
Special Considerations for Different Body Types
Every body is unique, and our bra size calculator accounts for various factors that influence fit. Women with fuller busts may need wider straps and stronger support features. Those with smaller busts might prefer push-up or padded styles for enhancement. Asymmetrical breasts are common and normal – fit to your larger breast and use padding or inserts to balance the smaller side.