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Product Questions Choosing the right frame What do the numbers on my frame mean?
What do the numbers on my frame mean?
Measure frame glasses eyeglasses
existing current my
On the inside of the frame, you
will see numbers that tell you the frame measurement of your existing
frame.
The temple “arm” length is usually
written on the inside of one of the temples.
The number is usually between 125 and 145, and represents the full temple
length (including the bend) in millimeters (mm).
The “eye size” and “nose bridge”
measurements are sometimes stamped in that same place, and are either separated
with a dash ( - ) or a small box between the numbers. An example is 49-19, which would mean an eye
size (widest part of the lens) of 49mm and a nose bridge (also called “DBL” or
“distance between lenses”) measurement of 19mm.
It is also very common for these to be stamped or engraved on the inside
of the nose bridge.
