Foot Length

Chervenak FA, Isaacson GC, Campbell S (eds)

Ultrasound in Obstetrics and Gynecology 1992;

Table A1-12:pg 1783.

Boston: Little, Brown and Company

GA (wks)	-2SD	Mean	+2SD
12	9.5	10.7	11.9
13	10	14	18
14	13.7	16.1	18.5
15	13	17.4	21.8
16	19.4	22.6	25.8
17	20.4	25.4	30.4
18	21.9	28.3	34.7
19	25.3	31.1	36.9
20	29	33.6	38.2
21	30.4	36	41.6
22	33.8	38.6	43.4
23	37.1	42.9	48.7
24	39.2	47	54.8
25	41.1	46.9	52.7
26	43.1	51.1	59.1
27	46.3	53.7	61.1
28	50.5	56.9	63.6
29	52	59.2	66.4
30	53	60.2	67.4
31	58.5	65.1	71.7
32	59.3	65.9	72.5
33	57	67.4	77.8
34	65.9	71.5	77.1
35	64.5	71.1	77.7
36	67.1	73.5	79.9
37	68	77.2	86.4
38	71.6	77.6	83.6
39	69.2	77.8	86.4
40	70.8	81.4	92
41	71.3	80.7	90.1
42	67.2	81	94.8