Use a flexible measuring tape
Wear fitted clothing or measure over underwear
Stand straight and relaxed
Keep the tape level and snug, not tight
Measure chest/bust around the fullest part
Measure waist at the narrowest part
Measure hips around the fullest part
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 of the neck
Measure thigh around the fullest part
Measure arm around the fullest part of the bicep
Measure wrist around the wrist bone
Record all measurements in inches or centimeters
Double-check each measurement for accuracy