geo-distance Verified Precision Tool
Country Distance Calculator
Calculate straight line distance between major world countries and capital cities.
📍 Select World Location Presets or Custom Coordinates
WGS-84 EllipsoidPoint 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.
Related Calculators
geo-distance
Distance Calculator
Calculate straight-line geodesic (Haversine) distance between geographic coordinates or world cities.
Use Calculator
geo-distance
Haversine Distance Calculator
Compute exact great-circle distance between two latitude and longitude coordinates using the Haversine trigonometric formula.
Use Calculator
geo-distance
GPS Coordinate Converter
Convert GPS coordinates between Decimal Degrees (DD), Degrees Minutes Seconds (DMS), and Degrees Decimal Minutes (DDM).
Use Calculator