The weight of a 35-week-old fetus is usually between 3.4 and 5 pounds, with individual variations in the exact weight. During pregnancy, ultrasound examination can provide preliminary information on fetal length, vertex-rump length, weight and other related indicators to assess whether the development of the fetus is normal or not. Usually, at the end of 32 weeks of pregnancy, the fetus is about 40cm in length, 28cm in parietal length and weighs about 1700g; at the end of 36 weeks of pregnancy, the fetus is about 45cm in length, 32cm in parietal length and weighs about 2500g. Therefore, the weight of the fetus at 35 weeks of pregnancy is usually between 1700g-2500g, or between 3.4-5 pounds. Fetal development is affected by genetic factors, nutritional factors and other factors, and there are also differences. If it is obviously beyond or below the normal range, you need to consult a doctor for a medical checkup in time, and give the necessary interventions to promote the healthy development of the fetus.