Measuring Eyelash Length

• 1). Brush your eyelashes with an eyelash brush to make one fall out. Lay the eyelash on a piece of adhesive tape and stick it down so it lays in a straight line.
  
  
• 2). Hold the end of a tape measure or ruler at one end of the lash and stretch it out to the other end.
  
  
• 3). Look at the number where the eyelash ends. This is how long your eyelash is. Depending on the type of tape measure or ruler you are using, the measurements may be in inches or millimeters.