Because the Earth is round, the shortest path between two points is not a flat line but a curve that follows the planet's surface — this is called the great-circle distance, and it is the same path long-haul flights follow. Keep in mind this is distance "as the crow flies": the driving distance between two cities is almost always longer, because roads have to bend around mountains, rivers, and built-up areas.
How it works
The calculator uses the Haversine formula, a well-established piece of math that treats the Earth as a sphere. It takes your two coordinate pairs, works out the angle between them as seen from the center of the Earth, and converts that angle into a distance along the surface.
The result is accurate to within roughly half a percent anywhere on the planet — the small difference comes from the Earth being slightly flattened at the poles rather than a perfect sphere. For comparing locations, planning legs of a journey, or estimating coverage areas, that precision is more than enough.
How to use the Point to Point Distance Calculator
- Step 1
Set your two points
Enter the latitude and longitude of both locations, search for a place by name, or click two spots directly on the map.
- Step 2
Calculate the distance
Run the calculator and MapGO computes the great-circle distance between the two points using the Haversine formula.
- Step 3
Read the result
The straight-line distance appears in kilometers and miles, with both points and the connecting line drawn on the map.
What people use it for
Logistics planning
Estimate shipping legs and delivery radii before committing to detailed route planning — straight-line distance is a fast first filter for feasibility.
Aviation and sailing
Great-circle distance is the path aircraft and ocean crossings actually follow, making it the right measure for flight legs and sailing passages.
Real-estate proximity
Compare how far listings sit from schools, offices, transit hubs, or the coast to rank properties by location.
Research and analysis
Measure separations between study sites, weather stations, or sample points in academic and scientific work.
Frequently asked questions
- How far is it between two locations?
- Search for both places, or click them on the map, and MapGO shows the straight-line distance between them in miles and kilometers. This is the distance as the crow flies, not the distance by road.
- How do I find the distance between two cities?
- Type the first city into point A and the second into point B. MapGO returns the straight-line distance in miles and km and draws the line on the map. Driving distances are longer, because roads rarely run straight.
- Can I find the distance between two addresses?
- Yes. Search for a full street address in each box and MapGO measures the straight-line distance between the two. It does not give a driving distance or travel time.
- Is this the same as driving distance?
- No. The calculator returns the straight-line (great-circle) distance over the surface of the Earth. Driving distance follows roads and is almost always longer — sometimes by a lot in mountainous or coastal areas.
- What is the Haversine formula?
- It is a standard formula for computing the shortest distance between two points on a sphere. Given two latitude/longitude pairs, it calculates the great-circle distance — the curved path an airplane would fly between them.
- How accurate is the result?
- Typically within about 0.5%. The Haversine formula assumes the Earth is a perfect sphere, while in reality it is slightly flattened at the poles, which introduces a small error.
- Can I see the distance in miles as well as kilometers?
- Yes. Every result is shown in both kilometers and miles, so you can use whichever unit your project or audience expects.