| Human Embryo Carnegie Stages and Crown-Rump Length CRL
|
| Carnegie Stage
|
Crown-Rump Length CRL (mm)
|
| 7
|
0.4
|
| 8
|
1.0 - 1.5
|
| 9
|
1.5 - 2.5
|
| 10
|
2 - 3.5
|
| 11
|
2.5 - 4.5
|
| 12
|
3 - 5
|
| 13
|
4 - 6
|
| 14
|
5 - 7
|
| 15
|
7 - 9
|
| 16
|
8 - 11
|
| 17
|
11 - 14
|
| 18
|
13 - 17
|
| 19
|
16 - 18
|
| 20
|
18 - 22
|
| 21
|
22 - 24
|
| 22
|
23 - 28
|
| 23
|
27 - 31
|
