Route Distance Calculator (Haversine)
Compute the great-circle distance and rough travel time between two geographic coordinates using the haversine formula — no map data required.
How to Use the Route Distance Calculator (Haversine)
- Enter start latitude and longitude in decimal degrees.
- Enter end latitude and longitude.
- Click Calculate to see distance and travel time.
Use Cases
- •Quick distance estimates without Internet.
- •Logistics and freight planning.
- •Navigation homework and GIS practice.
Formula
a = sin²(Δφ/2) + cos φ₁·cos φ₂·sin²(Δλ/2). c = 2·atan2(√a, √(1−a)). d = R·c, with R = 6371 km.
Frequently Asked Questions
Is this real driving distance?
No — it is the straight-line geodesic (great-circle) distance. Actual road distance is typically 15–30% longer.
Why 60 km/h for travel time?
A simple average that mixes city and intercity driving. Replace it with your own average if you need a tighter estimate.