About CrowFliesDistance.com
Our Mission
CrowFliesDistance.com is dedicated to providing the most accurate and easy-to-use straight-line distance calculator on the internet. Whether you're planning a trip, studying geography, or simply curious about the distance between two places, we're here to give you instant, reliable results.
What We Do
We calculate "as the crow flies" distances - the shortest possible distance between two points on Earth's surface. Our calculator uses the Haversine formula, which accounts for the spherical shape of the Earth, to provide accurate measurements between any two cities in our database of over 33,000 locations worldwide.
Our service is completely free and requires no registration. Simply enter your origin and destination cities, and we'll instantly calculate the straight-line distance in kilometers, miles, and nautical miles. We also provide the compass bearing and direction to help you understand the geographical relationship between locations.
Why Choose Us
- Accuracy: We use precise geographical coordinates and proven mathematical formulas to ensure our calculations are accurate to within 0.5%.
- Comprehensive Database: Our database includes over 33,000 cities worldwide, from major metropolises to smaller towns.
- Multiple Units: Get results in kilometers, miles, and nautical miles to suit your needs.
- Fast and Free: No registration required, no fees, just instant results.
- Educational Resources: Learn about distance calculations, the difference between straight-line and driving distances, and more through our blog and guides.
How It Works
Our calculator uses the Haversine formula, a equation that determines the great-circle distance between two points on a sphere given their longitudes and latitudes. This formula is particularly well-suited for calculating distances on Earth, as it accounts for the planet's curvature.
The term "as the crow flies" refers to the most direct route between two points, ignoring any obstacles like mountains, bodies of water, or human-made structures. While this distance is rarely the actual travel distance (which must follow roads, flight paths, or shipping lanes), it provides a useful baseline for understanding geographical relationships and planning purposes.
Contact Us
We're constantly working to improve our service and add new features. If you have questions, suggestions, or feedback, please visit our contact page to get in touch with our team.
Thank you for choosing CrowFliesDistance.com for your distance calculation needs. We're committed to providing you with accurate, reliable distance information whenever you need it.