Measuring the body is one of the most important things when making clothing. If you measure wrong or don’t measure at all chances are your item will not fit correctly. Below is a guide that I found on Marathonsweetheart & Oprah. To get accurate measurements have someone help you.
If you have a body form than transfer your numbers over to the form. If not just print the guide out. There is a spot where you can enter the measurements.
Next is a garment guide that is great. It is the basics for what you need to measure for what type of garment you would like to make. Courtesy of Aliexpress.