Theoretically, women's height and weight, limbs and trunk are the most beautiful in a certain proportion. After a lot of research, professionals finally quantified the beauty: 1, and the ratio of upper body to lower body: taking the navel as the boundary, the ratio of upper body to lower body should be 5 to 8, which is in line with the "golden section" law. 2, bust: measured from the armpit along the top of the chest, bust should be half the height. 3. Waist circumference: Under normal circumstances, measure the thinnest part of the waist. Waist is 20 cm smaller than bust. 4, hip circumference: in front of the body, the pubic bone is parallel to the largest part of the hip. The hip circumference is 4 cm larger than the chest circumference. 5, thigh circumference: at the top of the thigh, under the hip crease line. The thigh circumference is smaller than the waist circumference 10 cm. 6, calf circumference: calf fullness. The calf circumference is 20 cm smaller than the thigh circumference. 7. Foot neck circumference: at the thinnest part of the foot neck. The ankle circumference is smaller, and the leg circumference is smaller 10 cm. 8. Upper arm circumference: between shoulder joint and elbow joint. The upper arm circumference is equal to half the thigh circumference. 9. Neck circumference: The thinnest part in the middle of the neck. Neck circumference equals calf circumference. 10, shoulder width: the distance between two acromions. The shoulder width is equal to half the bust minus 4 cm.