Midpoint Calculator — Halfway Point Between Two Coordinates
Free midpoint calculator for maps and KML: enter two latitude/longitude points and get the great-circle halfway pin. Copy lat,lon or KML lon,lat and preview Point A, Point B, and the midpoint on OpenStreetMap — ideal for meeting points, ad pins, and territory centers.
Key features
- Spherical great-circle midpoint (not a flat lat/lon average)
- Input two points as decimal lat, lon
- Copy human lat,lon or KML lon,lat for Google Earth
- Map preview centers on the midpoint with A and B visible
What the Midpoint Calculator does
It finds the geographic halfway point along the great-circle path between Point A and Point B. That is more reliable than averaging latitudes and longitudes — especially on longer spans or near the antimeridian.
Why local SEO and GBP teams use it
Place a neutral “between two stores” pin for ads, content, or coverage planning. Use the midpoint as a Circle Generator center when you want one ring that balances both endpoints.
Midpoint vs centroid
For two points this is the great-circle midpoint — not a multi-vertex polygon centroid. For three or more points, use GIS or compute pairwise midpoints.
How to use this tool (best practice)
1) Enter Point A as lat, lon. 2) Enter Point B as lat, lon. 3) Calculate. 4) Copy the midpoint. Next: Distance Calculator for the span, Destination Calculator along a bearing, or Circle Generator using the midpoint as center.
Frequently asked questions
Is this Midpoint Calculator free?
Yes. It is free on GBP Local Ranker’s KML Workbench at /free-tools/kml-workbench/midpoint — no login required for basic use.
Is this the same as a polygon centroid?
No. For two points it returns the great-circle midpoint — not a multi-point or polygon centroid.
Why not just average lat and lon?
Simple averages fail on long spans and date-line crossings. The spherical midpoint follows the true halfway point on Earth.
What coordinate format do I use?
Enter both points as decimal latitude, longitude (example: 17.4401, 78.3489). The KML copy line uses lon,lat for Google Earth.
Does it work for short city distances?
Yes — and for tiny spans the result is nearly identical to a simple average, while staying correct for longer routes.
Can I midpoint three or more points?
Not in this tool. Compute pairwise midpoints or use GIS for multi-point centers.
How do I use the result with Circle Generator?
Copy the midpoint lat,lon into Circle Generator as the center when you want a ring that balances both endpoints.
Does elevation matter?
No. This is a 2D spherical surface midpoint. Altitude is ignored.
What does the map show?
The preview centers on the midpoint (teal) with Point A and Point B as orange pins.
Where is the full KML Workbench suite?
Open All KML Workbench Tools at /free-tools/kml-workbench for distance, destination, bearings, intersection, and more.