Deciding the right size for you is very easy. You just have to take note of the mesures of three of your body parts: 

1. Under bust: Measure around your rib cage, just below your bust.

2 . Bust: Measure around the fullest part of your bust with your arms relaxed at your sides. Generally, it's about 20 cm below your waist.

3. HipsMeasure around the the widest part of your hips

 

Now compare these mesures with the tables below and find the best size for you:

 

First, find your bra size using your under bust circumference measure:

Table 1

Under bust circumference (cm)

773 - 77  78 - 82  83 - 87  88-92  93 - 97  98 - 102 
FR 85 90 95 100 105 110
UK / US 32 34 36 38 40 42
EU 70 75 80 85 90 95

 

Now, knowing your bra size and your bust circumference measure, you can determine the right cup size

Table 2

Under bust circumference (cm)

73-77 78-82 83-87 88-92 93-97 98-102
Bra Size (FR) 85 90 95 100 105 110
Cup Size 
B 89 - 91 94 - 96 99 - 101 104 - 106 109 - 111 114 - 116
C
91 - 93
96 - 98 101 - 103 106 - 108 111 - 113 116 - 118
D
93 - 95 98 - 100 103 - 105 108 - 110 113 - 115 118 - 120
E
95 - 97 100 - 102 105 - 107 110 - 112 115 - 117 120 - 122

 

 

To find your brief size, use your hip's circumference measure:

Table 3

Hip circumference (cm)

96 - 100 100 - 104 104 - 108 108 - 112 112 - 116 116 - 120
Wast circumference (cm) 66 - 70 70 - 74 74 - 78 78 - 82 82 - 86 86 - 90
Botton Size (FR) 38 40 42 44 46 48

 

Note: when buying a one - piece swimwsuit use your hips measure as a guide and if the model you choose comes in bra-sized options then also consider your cup size.