
Reference Manual 32
Crown-Rump Length (CRL) : HANSMANN
GA Table
Hansmann, Hackeloer, Staudach, Wittman. “Ultrasound Diagnosis in Obsterics and
Gynecology.” Springer-Verlag, New York, 1986, p.439.
Conversion: This table is converted from German age to American age notation by the
following equation.
America age days = ( German weeks – 1 ) x 7 + ( German days – 1)
CRL (cm) GA (wd) Min (wd) Max (wd) CRL (cm) GA (wd) Min (wd) Max (wd)
0.60 06w1d 05w1d 07w0d 5.40 12w3d 11w0d 13w5d
0.70 06w2d 05w3d 07w2d 5.60 12w4d 11w1d 13w6d
0.80 06w4d 05w4d 07w3d 5.80 12w5d 11w2d 14w0d
0.90 06w6d 05w6d 07w6d 6.00 12w6d 11w3d 14w1d
1.00 07w0d 06w1d 08w0d 6.30 13w0d 11w4d 14w3d
1.10 07w2d 06w2d 08w1d 6.60 13w2d 11w5d 14w5d
1.20 07w3d 06w3d 08w3d 7.00 13w3d 12w0d 15w0d
1.30 07w4d 06w5d 08w4d 7.30 13w5d 12w1d 15w1d
1.40 07w6d 06w6d 08w6d 7.60 13w6d 12w2d 15w3d
1.50 08w0d 07w0d 09w0d 8.00 14w1d 12w4d 15w5d
1.60 08w2d 07w2d 09w1d 8.30 14w2d 12w5d 16w0d
1.70 08w3d 07w3d 09w2d 8.60 14w4d 12w6d 16w2d
1.80 08w4d 07w4d 09w4d 9.00 14w6d 13w1d 16w4d
1.90 08w5d 07w5d 09w5d 9.30 15w1d 13w3d 16w6d
2.00 08w6d 07w6d 09w6d 9.60 15w3d 13w4d 17w1d
CRL (cm) GA (wd) Min (wd) Max (wd) CRL (cm) GA (wd) Min (wd) Max (wd)
2.10 09w0d 08w0d 10w0d 10.00 15w5d 13w6d 17w3d
2.20 09w1d 08w1d 10w1d 10.30 16w0d 14w1d 17w6d
2.40 09w3d 08w3d 10w3d 10.60 16w2d 14w3d 18w1d
2.60 09w5d 08w5d 10w5d 11.00 16w4d 14w5d 18w4d
2.80 10w0d 08w6d 11w1d 11.30 17w0d 15w0d 19w0d
3.00 10w2d 09w1d 11w2d 11.60 17w2d 15w2d 19w2d
3.20 10w3d 09w2d 11w4d 12.00 17w4d 15w4d 19w4d
3.40 10w5d 09w4d 11w5d 12.30 18w0d 16w0d 20w0d
3.60 10w6d 09w5d 12w0d 12.60 18w2d 16w2d 20w3d
3.80 11w1d 09w6d 12w2d 13.00 18w6d 16w5d 20w6d
4.00 11w2d 10w1d 12w3d 13.30 19w1d 17w0d 21w2d
4.20 11w3d 10w2d 12w4d 13.60 19w4d 17w3d 21w6d
4.40 11w4d 10w3d 12w6d 14.00 20w0d 17w6d 22w2d
4.60 11w6d 10w5d 13w0d 14.30 20w3d 18w1d 22w5d
4.80 12w0d 10w6d 13w2d 14.60 20w6d 18w4d 23w1d
5.00 12w1d 10w6d 13w3d 15.00 21w3d 19w0d 23w5d
5.20 12w2d 11w0d 13w4d
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