How to Measure Glasses?

By

Alize Mendez

on

November 26, 2018

Steps to Measure Glasses

  1.  is the horizontal with of the
    frame’s lens in millimeters. Usually, the eye size ranges from 40 mm to 60 mm.
    When measuring, please measure on the inside of the frame.


  2. is the vertical
    height of an eyeglasses lens which is measured from the top to the bottom of
    the lens excluding the frame. The B measurement is is important for bi-focal
    lenses or pro-gressive lenses.
  3.  is the distance between the two lenses in millimeters and
    typically ranges from 14 mm to 24mm. When measuring the bridge, you start and
    end at the innermost side of the lenses.
  4. is the
    length of the temple from one end to the other and also includes the bend. Your
    temple length can fall between 120 mm and 150 mm. When measuring start at the hinges
    and continues in a straight line to the farthest point without sloping
    downward.
  5.  is the horizontal with of the
    frame and is measured from the outmost side of the frame.
  6.  is the vertical height of the frame
    and is measured from the outmost side of the frame.

image of glasses for measurement

Important Tips

Many
of the above measurements are also engraved on the inside of the glasses. In
many cases, this is on the inside of the temples (the arm piece). The format
looks in many cases as like this: 38-19-190. The first number represent the
size of the lenses, the second number is the bridge size and the third is the
temple length, also known as the arm length. In some rare cases you have also a
fourth number which refers to the height of your lens.

Temple size of sunglasses or glasses (Eye Size, Bridge Size, Temple Size)

 a two-digit number in the 40
- 60 range

 a two-digit number in the 14
- 24 range

 a three-digit number in the
120 - 150 range

The eye size is the most important number to pay
attention to. Depending on the style of frames you choose, you can go up or
down by one and still find a decent fit.

Tips for Taking Measurements:

Frame measurements are listed in mm (millimeters)

If you are using an inch ruler, 1 inch = 25.4 mm

If you are using a cm (Centimeter) ruler, 1 cm = 10 mm

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Alize Mendez
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