How to Measure Your Bra Size at Home: A Simple Guide
- Elena Fantoora
- Jul 3
- 2 min read
Wearing the wrong bra size can lead to discomfort, poor posture, and even back pain. But the good news is—you can easily measure your bra size at home using a measuring tape and just a few minutes of your time. Here's how to do it right.
Why Measuring Matters
Over 80% of women wear the wrong bra size without even realizing it. A proper fit ensures comfort, support, and confidence—whether you're working, relaxing, or working out.
What You’ll Need
A soft measuring tape (in inches)
A mirror (to help you see if the tape is level)
A non-padded bra (or go braless for a more accurate measurement)
A pen and paper to jot down your numbers
Step-by-Step: How to Measure Your Bra Size
Step 1: Measure Your Band Size
Wrap the measuring tape snugly around your ribcage, just under your bust.
Make sure the tape is level and not twisted.
Round the measurement to the nearest whole number.
If the number is even, add 4 inches.If the number is odd, add 5 inches.
Example: If you measure 31 inches, add 5 = 36 (Your band size is 36).
Step 2: Measure Your Bust Size
Wrap the tape around the fullest part of your bust (usually over the nipples).
Don’t pull it too tight—make sure it sits flat but comfortably.
Round to the nearest whole number.
Example: If your bust measures 40 inches, write it down.
Step 3: Calculate Your Cup Size
Now subtract your band size (Step 1 result) from your bust size (Step 2 result):
Bust – Band = Cup Size Difference
Difference (in inches) | Cup Size |
1 | A |
2 | B |
3 | C |
4 | D |
5 | DD or E |
6 | DDD or F |
7 | G |
Example: 40 (Bust) – 36 (Band) = 4 → You wear a 36D.
Tips for the Perfect Fit
Straps shouldn’t dig in or fall off your shoulders.
The band should be snug and level all around.
Cups should contain your breasts fully without gaping or spilling.
If your bra rides up in the back, the band may be too loose.
Final Thoughts
Finding your bra size isn’t complicated—it just takes a bit of measuring and a few minutes. By following this simple guide, you’ll be one step closer to better comfort, better support, and a better day overall.
Need help choosing a bra after measuring? Brands like Honeylove, ThirdLove, and Victoria's Secret offer great fit guides and options based on your unique size.
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