Dress shirt measurements are based on your neck, arm, chest, and waist measurements. Below is a simple guide on how to properly take these critical measurements.
For menswear, companies typically offer shirts in alpha sizing (small, medium, large) or numerical sizing (based on your neck and arm length). The chest and waist measurements are standardized based on neck and arm length in relation to a company’s fit formula.
When taking your body measurements, it is best to use a soft measuring tape (tailor’s tape) since it is the easiest to wrap around your body. Ask a friend to help to take your measurements, or ask your tailor or personal dry cleaner to take your measurements if you are concerned about accuracy.
Pro tip: If you don’t have access to tailor’s tape you can use a piece of string, and then lay the string flat out on a tape measure.