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Geodesy & Distance CalcyZone Calculator

Country Distance Calculator

Calculate straight line distance between major world countries and capital cities.

📍 Select World Location Presets or Custom Coordinates

WGS-84 Ellipsoid
Point 1 Coordinates (Origin)
Point 2 Coordinates (Destination)
Calculated Geodetic Solution
5,570.23 km (3,461.179 miles)
Kilometers (km)5570.23 km
Miles (mi)3461.179 mi
Nautical Miles (NM)3007.685 NM
Meters (m)5570229.9 m
🗺️ Interactive Geographic Map & Geodesic Trajectory

Click anywhere on the map or drag pins to update coordinates live.

Map Data: © OpenStreetMap ContributorsWGS-84 Precision Geodesic Curve

Step-by-Step Mathematical Derivation

1. Given Input Coordinates:
  • Origin P1: (40.7128°, -74.006°)
  • Destination P2: (51.5074°, -0.1278°)
2. Model & Ellipsoid Reference:WGS-84 / Earth Sphere R = 6,371 km
3. Governing Geodesic Formula:d = 2R × arcsin(sqrt(sin²(Δφ/2) + cos(φ1)cos(φ2)sin²(Δλ/2)))
4. Variable Substitution:R = 6,371 km, Δφ = 10.7946°, Δλ = 73.8782°
5. Interpretation & Practical Application:

The great-circle flight distance between (40.7128, -74.006) and (51.5074, -0.1278) is 5570.23 km.

Mathematical Formula

Distance = Haversine distance between country capital reference points

Overview & Explanation

Calculates straight line geographic distance between primary reference cities of selected countries.

How It Works

  • Evaluates capital city reference coordinates via Haversine math.

Practical Applications

  • International geographical comparison.
  • Travel distance estimates.

Worked Example: India to Japan

Find country distance.

1

Capital Distance

Delhi to Tokyo coordinates

= 5,835 km (3,626 miles)

Frequently Asked Questions

How is country distance calculated?
Country distance is calculated using straight-line geodesic distance between capital cities.

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