Find your perfect Peachaus fit

Our bodies change from month to month, which is why finding the right bra size is so important.

We’ve given bra sizing a modern update by making our underwire bra range fluid fitting, meaning you can comfortably size up or down depending on how you want to feel. Your body, your mood, your fit. Simple! More on our fit philosophy here.

Finding your Peachaus fit is super easy.
Your band size is your dress size (S, M L), and your cup size is the measurement around the fullest part of your bust.

Watch the video below for a more detailed guide to measuring for our underwired bras.

Still deciding on your size? We offer free UK returns on all orders...

Clothing & Sleepwear

  UK size Bust Waist Hips Inside leg EU US AUS
Inches CM Inches CM Inches CM Inches CM
XS 8 & 8 32-33 81-84 25-26 63.5-66 34-35 86-89 27.5-28 70-71 34-36 4 & 6 6 & 8
S 8 & 10 33-35 84-89 26-28 66-71 35-37 89-94 28-29 72-73 36-38 6 & 8 8 & 10
M 10 & 12 35-37 89-94 28-30 71-76 37-39 94-99 29-29.5 73-74 38-40 8 & 10 10 & 12
L 12 & 14 37-39 94-99 30-31 76-79 39-41 99-104 29.5-30 74-76 40-42 10 & 12 12 & 14
XL 14 & 16 39-41 99-104 31-33 79-84 41-43 104-109 29.5-31 75-78 42-44 12 & 14 14 & 16

Soft Unstructured Bras

  UK size Peachaus sizing Across bust (inches) UK equivalent EU US AUS FR
Lower Upper
Torso (Under bust)
25.5"-27.5"		 6 & 8 XS 32 33 30B-C 65B-C 30B-C 8B-C 80B-C
Torso (Under bust)
27.5"-29.5" 		8 & 10 S 33 35 32B-C 70B-C 32B-C 10B-C 85B-C
Torso (Under bust)
29.5"-32.5"		 10 & 12 M 35 37 34B-C 75B-C 34B-C 12B-C 90B-C
Torso (Under bust)
32.5-34.5"		 12 & 14 L 37 39 36B-C 80B-C 36B-C 14B-C 95B-C
Torso (Under bust)
34.5 -36.5"		 14 & 16 XL 39 41 38B-C 85B-C 38B-C 16B-C 80B-C

Underwired Bras

  Peachaus sizing Across bust (inches) Cup UK equivalent EU US AUS FR
Lower Upper

S (6-8)

Torso (under bust)
27”-29”

 S1 33 34 1 32B 70B 32B 10B 85B
S2 34 35 ½ 2 32C 70C 32C 10C 85C
S3 34.5 35 ½ 3 32D 70D 32D 10D 85D
S4 35.5 36 4 32DD 70E 32DD/E 10DD 85E
S5 36 37 5 32E 70F 32DDD/F 10E 85F
S6 37 38 6 32F 70G 32G 10F 85G
S7 38 38 ½ 7 32FF 70H 32H 10FF 85H
S8 38.5
39 ½ 		8 32G 70I 32I 10G 85I

M (10-12)

Torso (under bust)
29”-31”

 M1 35 36 1 34B 75B 34B 12B 90B
M2 36 36 ½ 2 34C 75C 34C 12C 90C
M3 36.5 37 ½ 3 34D 75D 34D 12D 90D
M4 37.5 38 4 34DD 75E 34DD/E 12DD 90E
M5 38 39 5 34E 75F 34DDD/F 12E 90F
M6 39 40 6 34F 75G 34G 12F 90G
M7 40 40 ½ 7 34FF 75H 34H 12FF 90H
M8 40.5 41 ½ 8 34G 75I 34I 12G 90I

L (14-16)

Torso (under bust)
31”-33”

 L1 37 38 1 36B 80B 36B 14B 95B
L2 38 38 ½ 2 36C 80C 36C 14C 95C
L3 39.5 39 ½ 3 36D 80D 36D 14D 95D
L4 39.5 40 4 36DD 80E 36DD/E 14DD 95E
L5 40 41 5 36E 80F 36DDD/F 14E 95F
L6 41
41 ½ 		6 36F 80G 36G 14F 95G
L7 41.5
42 ½ 		7 36FF 80H 36H 14FF 95H
L8 42.5
43 ½ 		8 36G 80I 36I 14G 95I

Seamless Unstructured Bras

Seamless Unstructured Bras
Underbust  UK  Dress Size  Peachaus Simple Sizing Across Bust Measurement in inches UK Standard Equivalent  European Standard US Standard  Australian Standard France Standard
Lower  Upper
Torso (Under bust) 25.5" 29.5" 6 & 8 S 32 35.5 28 C-DD 30 B-D 60 C-DD/65 B-D 28 C-DD 30 B-D 6 C-DD/ 8 B-D 75 C-DD 80B-D
Torso (Under bust) 29.5"-32.5 10 & 12 M 35.5 38    32 C-DD 34 B-D 70 C-DD/75B-D 32 C-DD 34 B-D 10 C-DD/ 12 B-D 85 C-DD 90B-D
Torso (Under bust) 32.5-36.5 14 & 16 L 38 40.5 36 C-DD-38 B-D 80 C-DD/85 B-D 36 C-DD-38 B-D 14 C-DD/ 16 B-D 95 C-DD 100 B-D

 

 

Seamless Briefs

Seamless Briefs
UK  Dress Size  Peachaus Simple Sizing Waist Hips US EU AU
Inches CM Inches CM
6 & 8  S 24-27 61-69 33-35 84-89 4 & 6 34 & 36 6 & 8
10 & 12  M 27-30 69-76 35-39 89-99 8 & 10 38 & 40 10 & 12
14 & 16  L 30-33 76-84 39-43 99-109 12 & 14 42 & 44 14 & 16

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