The formula commonly used in the world to calculate people's weight and the calculation of body proportion (more suitable for orientals):

Standard weight (male) = (height cm- 100)x0.9 (kg)

Standard weight (female) = (height cm- 100)x0.9 (kg) -2.5 (kg)

Normal weight: standard weight 10%.

1, your grandfather's height is 178, the standard weight should be 140.4 kg, the normal weight can reach 154.44 kg, and his weight is 165 kg.

2. Your father's height is 175, the standard weight should be 135 kg, the normal weight can reach 148.5 kg and the weight is 160 kg.

3. Your mother's height is 16 1, the standard weight should be 103 kg, the normal weight can reach 1 13.3 kg, and the weight is 1 16 kg.

4. Your height is 183, your standard weight should be 149.4 kg, your normal weight can reach 164.34 kg, and your weight is 170 kg, which is slightly fat.

5. The height of your daughter-in-law is 174, and the standard weight should be128.2kg.. Her normal weight can reach 14 1.02 kg, and her weight is 140 kg.