Use a soft measuring tape
Wear fitted clothing or undergarments
Stand straight with feet together
Keep the tape level and snug, not tight
Measure over the fullest part for bust, chest, waist, and hips
Measure waist at the narrowest point
Measure hips at the fullest point
Measure bust around the fullest part of the chest
Measure chest around the fullest part under the arms
Measure shoulders from one shoulder edge to the other
Measure sleeve length from shoulder to wrist
Measure inseam from crotch to ankle
Measure outseam from waist to ankle
Measure neck around the base
Measure arms and thighs at the fullest part
Record measurements in inches or centimeters
Take each measurement twice
Keep the tape parallel to the floor
Breathe normally while measuring
Ask someone to help for more accurate results