MARINE

Nautical Distance Calculator

Great circle · Rhumb line · Latitude/Longitude · Waypoint distance · Voyage planning

great circle rhumb line

Position & route parameters

°
Positive = North, Negative = South
°
Positive = East, Negative = West
°
°
route

Distance formulas

  • d = acos(sinφ₁·sinφ₂ + cosφ₁·cosφ₂·cosΔλ) great circle (radians)
  • D = d × 60 NM
  • Δφ = φ₂ - φ₁ · Δλ = λ₂ - λ₁ coordinate differences
Distance 3,456 NM
Initial bearing 52.3 °
Final bearing 307.7 °
Route visualization Origin Destination
A B 3,456 NM
Route type: Great Circle
Position details
Origin 40.7°N, 74.0°W
Destination 51.5°N, 0.1°W
Latitude diff 10.8 °
Longitude diff 73.9 °
Route breakdown waypoint analysis
Total distance
3,456 NM
Latitude change
10.8°
Longitude change
73.9°
Course: 052° ETA (20kt): 172.8 hr Great Circle