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Find out how big your baby is in each week of pregnancy, using our fetal growth chart measurements of average length and weight.
Estimated Gestational Age and Fetal Weight Calculator. The calculator below uses Hadlock equations to estimate the gestational age [11,12, 46 ] and the Shepard and Hadlock equations to estimate the fetal weight 12-15]. Select the parameters and corresponding measured values to use, then press the 'Calculate' button
See our fetal growth chart with the average fetal height and weight for each week of pregnancy. Also learn how your doctor checks your fundal height for signs…
Fetal Growth Calculator. This calculator is based on The World Health Organization Fetal Growth Charts 1 and intended for international use.
This calculator uses data from the NICHD Fetal Growth Study to calculate Estimated Fetal Weight (EFW) for a singleton (one) fetus between 10 weeks 0 days and 41 weeks 6 days of pregnancy. Depending on the ultrasound measurements included, the calculator can provide four estimates of EFW percentiles.
In early pregnancy, your baby grows fast, from a tiny poppy seed to the size of a grape in a matter of just a few weeks! Our chart below will give you a sense of your baby’s size, and how they're growing, as you progress through pregnancy.
Our fetal weight percentile calculator computes your child's growth and compares it to the general population. Our BPD, HC, AC, and FL calculator uses all the necessary ultrasound fetal measurements to compute your child's weight at a given week of the pregnancy.
The estimated fetal weight is plotted on the reference range for gestational age derived from the formula reported by: Nicolaides KH, Wright D, Syngelaki A, Wright A, Akolekar R. Fetal Medicine Foundation fetal and neonatal population weight charts.
Estimated Fetal Weight (EFW) tables and graphs: These charts were updated in 2020 to use the Hadlock formula with three parameters, abdominal circumference, head circumference, and femur length. The 2016 formula only accounted for abdominal circumference and head circumference. The 2020 updated charts are the recommended charts to use for EFW.
The fetal weight growth chart below shows the average increase in the weight of the foetus on a week-by-week basis. The numbers are only averages, and the actual weight and length of the foetus may vary significantly.