Take your actual body measurements, as they are more accurate than measuring over your clothes.
BUST: Measure around the fullest part of the bust, keeping the tape parallel to the floor.
WAIST: Measure around the narrowest point, keeping the tape parallel to the floor.
HIPS: Stand with feet together and measure around the fullest point of the hip, keep the tape parallel to the floor.
Chikankari is supposed to be worn loose from the body size. It's suggestive to go for 3-4 inches (10.16cm - 12.70cm) above you body size for a comfort fit.
Example : If your bust size is 36 inches, we recommend you to go for 40 inches for a comfort fit and 42 inches for a baggy overshirt look.