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Lens Power

P = \frac{1}{f}

The power of a lens in diopters is the reciprocal of focal length in meters.

Variables

P

Power

D (diopters)

f

Focal length

m

Your notes

0/5000

Calculator

fm

Enter a valid number for f.

Related formulas

\frac{1}{f}Thin Lens EquationLenses P_{total}Combined Lens PowerLenses

Tags

lens power diopters optics

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