Biparietal Diameter (BPD)

Romero R, Pilu G, Jeanty P et.al.

Prenatal diagnosis of congenital anomalies 1988;Table 1-4:pg 10

Norwalk: Appleton and Lange.

GA (wks)	5^th Percentile	50th Percentile	95th Percentile
11	13	17	22
12	16	21	25
13	20	24	29
14	23	28	32
15	27	31	36
16	30	35	39
17	34	38	43
18	37	42	46
19	40	45	49
20	44	48	53
21	47	51	56
22	50	55	59
23	53	58	62
24	56	61	65
25	59	64	68
26	62	67	71
27	65	70	74
28	68	72	77
29	70	75	79
30	73	77	82
31	75	79	84
32	77	82	86
33	79	84	88
34	81	86	90
35	83	87	92
36	84	89	93
37	86	90	95
38	87	91	96
39	88	93	97
40	89	93	98
41	89	94	99
42	90	94	99