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Fiber Optic Parameters Calculator vs Lens Focal Length Calculator

Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.

Optics

Fiber Optic Parameters Calculator

Compute the numerical aperture, acceptance cone half-angle, or critical angle of an optical fiber from its core and cladding refractive indices. Used by fiber installers, photonics students, and optical engineers.

Answers
Result
Inputs
Core Refractive Index, Cladding Refractive Index, External Medium Index, Calculate
Optics

Lens Focal Length Calculator

Compute the focal length of any thick or thin lens from its refractive index, surface curvatures, and center thickness using the lensmaker's equation. Essential for optical designers, physics students, and DIY telescope builders.

Answers
Focal Length (cm)
Inputs
Refractive Index of Lens Material, Radius of First Surface, Radius of Second Surface, Lens Thickness

At a glance

Fiber Optic Parameters CalculatorLens Focal Length Calculator
CategoryOpticsOptics
AnswersResultFocal Length
Inputs44
Result unitcm

When to use each

Compute the numerical aperture, acceptance cone half-angle, or critical angle of an optical fiber from its core and cladding refractive indices. Used by fiber installers, photonics students, and optical engineers.

Compute the focal length of any thick or thin lens from its refractive index, surface curvatures, and center thickness using the lensmaker's equation. Essential for optical designers, physics students, and DIY telescope builders.

Compare page seeded from editorial siblings — both calculators list each other as related.