Can I see the launch from my location?
Distance is only half the answer. A launch 300 miles away can be unmissable after dark and invisible at noon. Share your location and every upcoming Cape Canaveral launch gets checked against it.
Share your location once and every launch below gets checked against it: whether it clears your horizon, which way to face, how high it climbs and what the sky is doing over you.
Coordinates are rounded to about a kilometre. That is far more precision than the geometry needs and less than a street address.
What decides whether you'll see it
Three things, in roughly this order. Geometry: Earth curves, so past a few hundred miles the rocket never clears your horizon no matter how clear the night is. Lighting: the best case is a launch 30 to 60 minutes after sunset, when the plume catches sunlight far overhead while you stand in the dark. A midday launch is the weakest case, because a contrail against a bright sky fades fast with distance. Cloud: forecast over you, not over the pad, which on the Space Coast are regularly different skies.
The direction and elevation figures come from spherical geometry against the pad's published coordinates. The visibility score on top of them is a judgement, which is why the numbers behind it are shown rather than hidden.