Introduction During pregnancy, the comparison table between the size of the gestational sac and the gestational age is a very important reference indicator, which can help doctors determine whether the fetus is developing healthily. This article will introduce in detail the formula and calculation method of the gestational sac size and gestational age comparison table for easy understanding and use. Gestational sac size and gestational age comparison table formula The gestational sac size and gestational age comparison table is obtained by measuring the gestational sac size and calculating the gestational age. Gestational sac size refers to the diameter of the gestational sac in the uterus of a pregnant woman, while gestational age refers to the number of weeks of pregnancy. Gestational sac size