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Simple Magnifier Calculator

Relate user supplied magnifying power to focal length and diopters of a lens. Calculator assumes 250mm as the near point of the human eye, closest distance the eye can focus for comfortable vision, in order to determine basic parameters for finding the best lens for one's desired magnification.

Simple Magnifier Calculator

Focal Length (mm): --     

Diopters (1/m): --     

Magnifying Power, MP:


Equations and Corresponding Legend

$$ \text{FL} = \frac{250 \text{mm}}{\text{MP}} $$
$$ \text{Diopters} = \frac{1000 \text{mm}}{\text{FL}} $$
MP Magnifying Power
FL Focal Length

Related Resources and Products

Optical Lenses

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