If you are female your frame size will depend upon both your wrist measurement and your height. 2 bend your elbow so your forearm is at 90º to the ground.

3 Ways To Measure Frame Size Wikihow
Body frame size using wrist measurement. The only way to obtain an accurate idea of your body composition is to measure your body fat percentage. Measure your wrist circumference and check the chart below to determine your body frame category. Small medium and large. Wrist size varies from person to person and typically is associated with overall frame size rather than with body composition. There are three body frame size categories. 1 extend your arm forward so that it is horizontal and parallel to the ground.
Use the instructions below to achieve a proper measurement. For men a wrist size of 5 12 to 6 12 inches indicates a small frame while a measurement over 7 12 inches is typically of a larger bone structure. 3 place the forefinger and thumb of your other hand on either side of your elbow joint. Adding other measurements to the calculations such as waist circumference and weight can give you a good idea if youre at a healthy weight and wrist size for your height. Record the measurement as accurately as you can. To measure your frame size with your wrist wrap a tape measure snugly around your wrist and write down the measurement.
Analyze your wrist size to determine whether you have a small medium or large frame size. If you have a small body frame your goal bmi should be closer to 185. Height under 52 small wrist size less than 55 medium wrist size 55 to 575 large wrist size over 575 height 52 to 5 5. Try your best to keep your thumb and forefinger in the same position and slide them off of your elbow. The theory is that calculating the wrists circumference in relation to height determines what kind of body frame one has. Larger bones are heavier and therefore you should aim for a bmi closer to 249.
If you are a woman shorter than 5 feet 2 inches you have a small frame if you have a wrist size less than. Measure the width between your thumb and forefinger with a ruler. Hold a ruler between them or rest them on a ruler placed on a desktop. But since most people have a combination of the three body types wrist measurements provide a rough estimate at best. For men a wrist size measuring 55 to 64 inches is considered small framed 65 to 75 is a medium frame and greater than 75 inches is a large frame size. To determine the body frame size measure the wrist with a tape measure and use the following chart to determine whether the person is small medium or large boned.
If youd rather measure your elbow to figure out your frame size bend your arm at a 90 degree angle so your forearm is perpendicular to the ground. To choose your goal bmi required for the ideal weight calculator you need to take into account your bone structure. Measuring your wrist with your fingers.