This question already has an answer here:

Is there an equation that produces the amount of curvature of the Earth one should see at the altitude of x (whatever x may be)? I imagine it would be a complicated equation, and not as simple as people who believe the earth is flat say. (of course it isn't that simple, they always forget to include altitude)


marked as duplicate by kwinkunks, Fred, arkaia, daniel.neumann, Jan Doggen Jan 12 '18 at 9:44

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Browse other questions tagged or ask your own question.