Table 2 Common formulas used for sonographic fetal weight estimation

 1

Hadlock et al. (1985) [1]

=10 ^{1.304 + 0.05281(AC) + 0.1938(FL)-0.004(AC)(FL)}

 2

Woo et al. (1985) [2]

=10 ^{0.59 + 0.08(AC) + 0.28(FL)-0.00716(AC)(FL)}

 3

Warsof et al. (1986)^a [3]

=e^{2.792 + 0.108(FL) + 0.0036(AC)2–0.0027(FL)(AC)}

 4

Vintzileos et al. (1987) [4]

=10 ^{1.879 + 0.0084(BPD) + 0.026(AC)}

 5

Warsof et al. (1977)^b [5]

=10 ^{− 1.599 + 0.144(BPD) + 0.032(AC) − 0.000111(BPD)2(AC)}

 6

Shepard et al. (1982)^b [6]

=10^{–1.7492 + 0.166(BPD) + 0.046(AC)-0.002546(AC)(BPD)}

 7

Jordaan (1983)^b [7]

=10^{–1.1683 + 0.0377(AC) + 0.0950(BPD)-0.0015(BPD)(AC)}

 8

Hadlock et al. (1984) [8]

=10 ^{1.1134 + 0.05845(AC) − 0.000604(AC)2–0.007365 (BPD)2 + 0.000595(BPD)(AC) + 0.1694(BPD)}

 9

Woo et al. (1985) [2]

=10 ^{1.63 + 0.16(BPD) + 0.00111(AC)2–0.0000859 (BPD)(AC)2}

 10

Hsieh at al. (1987) [9]

=10 ^{2.1315 + 0.0056541(AC)(BPD) − 0.00015515 (BPD)(AC)2 + 0.000019782(AC)3 + 0.052594(BPD)}

 11

Hadlock et al. (1984) [8]

=10 ^{1.182 + 0.0273(HC) + 0.07057(AC) − 0.00063 (AC)2–0.0002184(HC)(AC)}

 12

Jordaan (1983) [7]

=10 ^{0.9119 + 0.488(HC) + 0.0824(AC)-0.001599(HC)(AC)}

 13

Jordaan (1983) [7]

=10 ^{2.3231 + 0.02904(AC) + 0.0079(HC) − 0.0058(BPD)}

 14

Hadlock et al. (1985) [1]

=10 ^{1.335–0.0034(AC)(FL) + 0.0316(BPD) + 0.0457(AC) + 0.1623(FL)}

 15

Woo et al. (1985) [2]

=10 ^{1.54 + 0.15(BPD) + 0.00111(AC)2–0.0000764(BPD)(AC)2 + 0.05(FL) − 0.000992(FL)(AC)}

 16

Shinozuka et al. (1987) [10]

= 0.23966(AC)²(FL) + 1.6230(BPD)³

 17

Hsieh at al. (1987) [9]

=10 ^{2.7193 + 0.0094962(AC)(BPD) − 0.1432(FL) − 0.00076742(AC)(BPD)2 + 0.001745(FL)(BPD)2}

 18

Hadlock et al. (1985) [1]

=10 ^{1.326–0.00326(AC)(FL) + 0.0107(HC) + 0.0438(AC) + 0.158(FL)}

 19

Combs et al. (1993) [11]

=0.23718(AC)² (FL) + 0.03312(HC)³

 20

Ott et al. (1986)^b [12]

=10 ^{− 2.0661 + 0.04355(HC) + 0.05394(AC) − 0.0008582(HC)(AC) + 1.2594(FL/AC)}

 21

Hadlock et al. (1985) [1]

=10 ^{1.3596 + 0.0064(HC) + 0.0424(AC) + 0.174(FL) + 0.00061(BPD)(AC) − 0.00386(AC)(FL)}