Use a soft measuring tape
Stand straight and relax your body
Measure waist at the narrowest part of your torso, usually above the belly button and below the ribs
Keep the tape level around your waist
Do not pull the tape too tight
Breathe normally while measuring
Measure hips at the widest part of your hips and buttocks
Keep the tape level around your hips
Make sure the tape is snug but not tight
Record both measurements in inches or centimeters
Repeat the measurements for accuracy