Horizon Distance Calculator

Calculate the distance to horizon depending on elevation plus height of observer, or distance to visible object behind the horizon.

Distance from Observer to Horizon

Distance = √((R+h)²-R²)

• R (Radius of Earth)
• h (Elevation + Height of Observer)

Distance from Observer to Object behind Horizon

Distance = √((R+h)²-R²) + √((R+H)²-R²)

• R (Radius of Earth)
• h (Elevation + Heigth of Observer)
• H (Elevation + Heigth of Object)

DIP correction in minutes of arc

DIP correction = 1.760 * h

• h (Elevation + Heigth of Observer) in Meters

Created by Andrej