Start by taking your measurements with a flexible measuring tape. Ideally, do this directly on your body, and if possible, without a bra or with an unpadded one. Stand straight, relax, and breathe normally. These measurements will help you find perfectly fitting underwear.
Find your bra size in 2 steps
Step 1: Measure your back circumference
Your band size is the basis for your bra size. It corresponds to the width of the band, which should be adjusted without being too tight. A band that's too loose won't provide support, while one that's too tight will leave marks.
Place the measuring tape just below your bust, ensuring it is perfectly horizontal. The measurement obtained will determine your bra size according to the following table:
| Back circumference (cm) | Bra size | International equivalency |
|---|---|---|
| 68 to 72 | 85 | XS |
| 73 to 77 | 90 | S |
| 78 to 82 | 95 | M |
| 83 to 87 | 100 | L |
| 88 to 92 | 105 | XL |
| 93 to 97 | 110 | XXL |
| 98 to 102 | 115 | XXXL |
| 103 to 107 | 120 | XXXXL |
Step 2: Measure your chest circumference
Your bust measurement determines the cup size, which is the volume of your breasts. A well-fitting cup should cover your breasts without compressing them or leaving any gaps.
Place the measuring tape around your chest, at the fullest part of your breasts, without pulling it too tight. Then subtract your bust measurement from your back measurement. The difference gives you your cup size:
| Difference (cm) | Cap |
| 13 | HAS |
| 15 | B |
| 17 | C |
| 19 | D |
| 21 | E |
| 23 | F |
| 25 | G |
Let's take an example:
-
Back measurement: 78 cm → corresponds to a size 95
-
Chest measurement: 97 cm
-
Difference = 19 cm → corresponds to a D cup
Your size is therefore 95D.
Find your panty size in 2 steps
Step 1: Measure your waist circumference
This refers to the narrowest part of the abdomen, often located a few centimeters above the navel. This measurement allows for waist adjustment without any compression effect.
Step 2: Measure your hip circumference
Measure the widest part of your buttocks. This measurement ensures that the panties don't pinch and fit your shape properly.
| French size | Waist circumference (cm) | Hip measurement (cm) | One size fits all |
| 32 | 57 to 61 | 84 to 88 | XXS |
| 34 | 58 to 62 | 86 to 90 | XS |
| 36 | 61 to 65 | 88 to 92 | S |
| 38 | 65 to 69 | 92 to 96 | M |
| 40 | 69 to 73 | 96 to 100 | L |
| 42 | 73 to 77 | 100 to 104 | XL |
| 44 | 77 to 81 | 104 to 108 | XXL |
| 46 | 81 to 85 | 108 to 112 | XXXL |
Tip: When choosing between sizes, always prioritize comfort. Stretchy fabrics sometimes allow you to choose the smaller size, while stiff fabrics will require a slightly larger size.
Choosing your lingerie according to your body shape
Finding the right size is essential. But choosing the cut that will flatter your figure is just as important. Depending on your body shape (A, H, 8, etc.), some lingerie styles will be more flattering and comfortable than others.
We have prepared a dedicated guide to help you choose your lingerie according to your body shape .
Do sizes vary between brands?
Slightly, yes. But measurements remain the best basis for choosing. Always try them out when possible.
How can I tell if my bra is too small?
If the underwires compress, the cups overflow, or the band rides up: it is too small.
How can I tell if my bra is too big?
If the cups gape, the band hangs loose in the back, or the straps fall down: it's too big.
What if I'm between two sizes?
Choose based on comfort and material. A stretch fabric can compensate for a few centimeters.
How do I adjust my bra properly?
The band should sit straight across the back, without riding up. The cups should provide coverage without compressing or spilling out. The center gore should lie flat against the sternum.
How can I calculate my bra size?
Take the measurement under the bust for the back measurement, then at the fullest part of the bust for the bust measurement. Subtract the two measurements to find your cup size.
