Sizing info varies by style and can be found in the description of each listing.

Many of our items run small so please check the size chart in the listing. 

If you have any questions about what size to order, please contact info@sonjabysonjamorgan.com or click here.

Our sizes are listed in US sizes. If you are ordering Internationally, please use the chart below to convert to your country's size.

International Size Chart:

USA 0 2 4 6 8 10 12 14 16 18 20
UK
4
6
8
10
12
14
16
18
20
22
24
Australia
4
6
8
10
12
14
16
18
20
22
24
France & Spain
32
34
36
38
40
42
44
46
48
50
52
Germany
34
36
38
40
42
44
46
48
50
52
54
Italy
36
38
40
42
44
46
48
50
52
54
56
Japan
5
7
9
11
13
15
17
19
21
23
27

 


Many of our listings have measurements in addition to sizes. Please use the chart below for further reference.

Women’s dress sizes in measurements:

US size Bust Waist Hips
INCHES
CM
INCHES
CM
INCHES
CM
0
31
78
23
58
33.5
85
2
33
83.5
24.5
62
35
88.5
4
34
86
25.5
65
36
92.5
6
34.5
87.5
26.5
67
37
93.5
8
35
88.5
27.5
70
38
96.5
10
36
92.5
28.5
72
39
98.5
12
37.5
95
30.5
77.5
40.5
102.5
14
39
98.5
31.5
80
42
106.5
16
40.5
102.5
33
83.5
43.5
110.5
18
42
106.5
34.5
87.5
45.5
115.5
20
44
110.5
36
92.5
47.5
120.5