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Both calculators run independently — change the inputs on either side to compare results.

Fiber Optic Loss Calculator

Computes total optical power loss in a fiber optic link by summing cable attenuation, connector insertion loss, and splice loss. Use it when planning network infrastructure or verifying a fiber link's power budget.

Fiber Length (km)

Attenuation Coefficient

Custom Attenuation (dB/km)

Number of Connector Pairs

Number of Splices

Fill in the required fields to see your result.

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.

Refractive Index of Lens Material

Radius of First Surface (cm)

Radius of Second Surface (cm)

Lens Thickness (cm)

Fill in the required fields to see your result.

Key differences

	Fiber Optic Loss Calculator	Lens Focal Length Calculator
Category	Optics	Optics
Inputs required	5	4
Result	Total Optical Loss (dB)	Focal Length (cm)
What it does	Computes total optical power loss in a fiber optic link by summing cable attenuation, connector insertion loss, and splice loss. Use it when planning network infrastructure or verifying a fiber link's power budget.	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.