Free Online Distance Calculator | GPS Coordinates Straight Line Distance Tool
Calculate accurate straight-line distances between any two points instantly. Click on the map or enter GPS coordinates to measure distances in both kilometers and miles.
Set Points
How to Use the Distance Calculator
Map Click Measurement
- Click on the map to set the starting point with the first marker
- Click on the destination to set the second marker
- The straight-line distance will be automatically calculated and displayed
- Results are shown simultaneously in both kilometers and miles
Direct Coordinate Input
- Enter the latitude and longitude of the origin in the right form
- Enter the latitude and longitude of the destination
- Markers will automatically appear on the map
- Check the accurate GPS coordinate-based distance
Key Features and Benefits
Accurate Measurement
Precise straight-line distance calculation based on GPS coordinates provides error-free results.
Real-time Calculation
Distance is automatically calculated as soon as you select points, enabling fast and efficient measurement.
Responsive Design
Optimized user experience across all devices including desktop, tablet, and mobile.
Frequently Asked Questions (FAQ)
What's the difference between straight-line distance and actual road distance?
Straight-line distance is the shortest distance connecting two points in a straight line. Actual road distance is the distance traveled along roads, which is typically longer than straight-line distance. This tool calculates straight-line distance (as-the-crow-flies).
What is the measurement accuracy?
GPS coordinate-based calculations provide very high accuracy. We use the Haversine formula which considers Earth's curvature for precise distance calculations.
Can I measure distances between multiple points simultaneously?
Currently, we only support distance measurement between two points. To measure multiple points, please perform individual calculations for each pair of points.
Technical Information and Formula
Haversine Formula
A formula used to calculate distances between two points on Earth, providing accurate results by considering Earth's curvature.
d = 2r × arcsin(√(sin²(Δφ/2) + cos(φ1) × cos(φ2) × sin²(Δλ/2)))Where φ is latitude, λ is longitude, and r is Earth's radius (6,371km).