Earth radius
6,371,000
m
Result
Horizon Distance
4654.18
m
4.65
km
15269.62
ft
2.89
mi
About this Tool
This tool calculates the distance to the horizon based on your height above the ground and the radius of the planet you're on. The formula used is derived from the Pythagorean theorem, considering the Earth (or other planet) as a sphere.
The formula is:
distance = sqrt(2 * height * planet_radius + height^2)
This free tool is part of a growing collection of lightweight web utilities crafted by Maxim Mäder to solve everyday computer tasks.