How To Measure Dress Length From Shoulder. Measure with your arm slightly bent. Measure from shoulder seam to the cuff (this is your dress sleeve length, rather than your arm length).
This is the width of your shoulder. Measure with your arm slightly bent. Measure from the shoulder to the wrist.
Shoulder measurement wear a shirt that fits you well, and measure the distance between armhole seams across your back.
Measure from your natural waist to the dress hem. Most dresses are at least 30 inches (76 cm) in length and can be as long as 62 inches (160 cm) in length. Measure from middle of the neck to end of shoulder (where sleeve starts). Dress length is the length from transition between shoulder and neck and down to the hemline of the dress.