Printable Measuring Your Nose Bridge – How to measure pupillary distance 1. To measure your nose bridge accurately, you'll need a ruler or a flexible measuring tape. Let’s get into exactly how to measure the bridge size on glasses, how wide your glasses bridge should be, and all the other important details to. Measure yourself in front of the mirror or have a friend measure your pd. Some people also use a piece of string to take measurements, which they then compare to a ruler. Measuring your nose bridge for flo mask pro 1. You should be measuring from the height of the bridge of your nose (which his usually just below your eye line) down to the indent in your chin. Examine your nose to determine if your bridge is high or low, and whether it is wide or narrow. Place the pd ruler over the bridge of the nose with the 0 above the. For more precision, a nose bridge calculator can be useful.
