Map Distance Calculator
Estimate the straight-line surface distance and initial bearing between two coordinates.
1. Set up your calculation
Uses a spherical Earth radius of 6,371 km and the haversine formula. This is an approximate great-circle distance, not driving distance or a navigation-grade route. Bearing is undefined for coincident or antipodal points.
2. Review & use your result
Review the example inputs, then use calculate distance.
Report / export preview
Using Map Distance Calculator
Estimate the straight-line surface distance and initial bearing between two coordinates.
- Enter start latitude and start longitude. Try the example to see the format.
- Calculate distance and review the result, including the assumptions shown below the inputs.
- Copy, download or print your result. Editing an input clears the previous result.
Example
The included example: Great-circle distance (km) — 343.55606034; Distance (miles) — 213.47583881. Change the inputs and generate a new result to compare it.
Questions & answers
How do I use this tool?
Estimate the straight-line surface distance and initial bearing between two coordinates. Load the editable example, replace its values and use the main action button.
What should I check before using the result?
Uses a spherical Earth radius of 6,371 km and the haversine formula. This is an approximate great-circle distance, not driving distance or a navigation-grade route. Bearing is undefined for coincident or antipodal points.
Are my entries saved?
Processing runs in your browser without a tool account or saved history. Download your result to keep a copy. Website advertising follows our privacy information.
Can I export or print it?
Copy and file download are available after generating a result. Print produces a clean copy of the visible result; use your browser’s Save as PDF option if needed.
Is this the distance I would drive?
No. It estimates the shortest surface arc on a sphere, without roads, hills or route restrictions. It uses coordinates you enter and performs no map lookup.
Related tools
A useful next step for your task.
ConvertersCoordinate ConverterConvert latitude and longitude between decimal degrees and degrees, minutes and seconds.
Everyday CalculatorsTrip Fuel Cost CalculatorEstimate fuel and shared trip cost in litres or US/Imperial gallons. Add a return trip and include other charges once.
Everyday CalculatorsSpeed Distance Time CalculatorSolve for speed, distance or time using kilometers and hours.
Everyday CalculatorsAge & Birthday CalculatorFind completed years, total elapsed days and days until the next birthday. Choose the anniversary rule for February 29 birthdays.
Help improve this tool
Report a problem or suggest an improvement
Describe the issue without pasting private tool input. Feedback goes to our admin inbox.