Use our smart calculator to discover your ideal lingerie size. Enter your measurements and get instant recommendations in EU, FR, UK & US sizes.
✨ Smart Size Calculator
Enter your measurements in centimeters
cm
Measure snugly around ribcage, just under breasts
cm
Measure at the fullest part of your bust
1Bust: Fullest part of your chest
2Underbust: Just below your breasts, around ribcage
Your Recommended Size
75B
European Size (EU)
French (FR)90B
UK Size34B
US Size34B
cm
Measure at the widest part of your hips
1Hips: Widest part of your hips/buttocks
Your Recommended Size
M
Standard Size
EU Size38
FR Size40
UK/US10
cm
cm
cm
For bodysuits and corsets, we use your largest measurement to recommend the best fit.
Your Recommended Size
M
Bodysuit / Corset Size
cm
cm
Sleepwear typically has a relaxed fit. We recommend based on your largest measurement.
Your Recommended Size
M
Sleepwear / Nightwear Size
Measuring Guide
How to Measure Yourself
1
Wear a Non-Padded Bra
For accuracy, wear your best-fitting non-padded bra or measure braless.
2
Use Soft Tape Measure
Keep tape parallel to floor and snug (not tight) against your body.
3
Record in Centimeters
European lingerie uses cm. Note down each measurement carefully.
4
Measure Multiple Times
Take each measurement 2-3 times for accuracy. Use the average.
Reference Charts
International Size Conversion
Bra Band Size Conversion
Find your band size across international sizing systems
Underbust (cm)
EU
FR/ES
UK
US
63-67
65
80
30
30
68-72
70
85
32
32
73-77
75
90
34
34
78-82
80
95
36
36
83-87
85
100
38
38
88-92
90
105
40
40
93-97
95
110
42
42
Cup Size Conversion
Based on bust minus underbust difference
Difference (cm)
EU Cup
UK Cup
US Cup
10-12
A
A
A
12-14
B
B
B
14-16
C
C
C
16-18
D
D
D
18-20
E
DD
DD/E
20-22
F
E
DDD/F
22-24
G
F
G
Note: Each brand may have slight variations. Always check the specific size guide on each product page for brand-accurate measurements from Gaia, Axami, Gorteks.
Panty & Brief Size Chart
Based on hip measurements
Size
Hips (cm)
EU
FR
UK/US
XS
84-88
34
36
6
S
88-92
36
38
8
M
92-96
38
40
10
L
96-100
40
42
12
XL
100-104
42
44
14
2XL
104-110
44
46
16
3XL
110-116
46
48
18
Dress & Nightwear Sizes
For dresses, nightgowns, robes, pajamas
Size
Bust
Waist
Hips
EU
UK
XS
80-84
60-64
86-90
34
6
S
84-88
64-68
90-94
36
8
M
88-92
68-72
94-98
38
10
L
92-96
72-76
98-102
40
12
XL
96-100
76-80
102-106
42
14
2XL
100-106
80-86
106-112
44
16
Expert Advice
Fitting Tips
Band Should Be Snug
Your bra band provides 80% of support. It should fit firmly on the loosest hook, allowing room to tighten over time.
Cups Should Fit Smoothly
No spillage or gaps. Underwire should sit flat against ribcage, not on breast tissue.
Sister Sizes Exist
If 75C is too tight, try 80B. Going up a band = going down a cup for same volume.
Brand-Specific Sizing
Each European brand has unique sizing. For the most accurate fit, always check the detailed size chart in each product description.
Discovering your perfect lingerie size is essential for comfort and confidence. At Secretelles, we understand that European lingerie sizing differs from US and UK standards, which is why we created this comprehensive bra size calculator and panty size guide.
Our interactive calculator converts your measurements into EU, FR, UK, and US sizes instantly. Whether shopping for push-up bras, lace panties, or luxury sleepwear, knowing your correct size ensures the perfect fit.
Remember, use this guide as a starting point and always check the brand-specific size charts in each product description for the most accurate sizing.
Still unsure about your size? Our lingerie experts are here to help!
