Fiber Optic Propagation Latency
Calculator

Inputs

One-way latency (ms)
19.586883

Results

One-way latency (ms)
19.586883
Round-trip latency (ms)
39.173767
Propagation speed (km/s)
204,218.29564

Computing results

One-way latency (ms)19.586883
Round-trip latency (ms)39.173767
Propagation speed (km/s)204,218.29564

formula-map diagram

One-way latency (ms)
19.586883
Round-trip latency (ms)
39.173767
Propagation speed (km/s)
204,218.29564

Computing relationship

Formula

t = distance ÷ (c ÷ n)

= 19.586883670035

Note

This is a simplified model: it applies the standard computing formula to the numbers you entered and ignores protocol overhead, compression variability, retries, contention and other real-world effects. Size your systems with measured data.

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