This page provides detailed answers to the most common questions about Worldwide Distance Finder, covering both everyday users and developers who integrate our Distance API. The goal of this document is to be clear, practical, and helpful — whether you are simply checking distances for travel or building a production-grade application that depends on location data.
Worldwide Distance Finder is an online tool that helps you calculate the distance between any two places in the world. You simply enter a source location and a destination, and the system computes the straight-line (great-circle) distance in kilometers.
Unlike basic calculators, this platform is built with modern mapping technology, automatic place suggestions, and real-time geographic processing. It is designed for travelers, students, businesses, and anyone who needs quick and reliable distance information.
We use latitude and longitude coordinates of both locations and apply a mathematical model known as the Haversine formula. This formula accounts for the curvature of the Earth, making the result much more accurate than a simple flat-map measurement.
This approach is widely used in aviation, navigation, and professional geographic systems. The result you see is the shortest possible path between two points across the Earth’s surface — often called the “as-the-crow-flies” distance.
Yes. The website-based distance calculator is completely free for all users. You do not need to create an account or provide payment details to use the basic tool.
However, if you are a developer or business that wants to integrate distance calculations into your own software, our API has both free and paid plans with different usage limits.
For straight-line distance, the results are highly accurate because they are based on real geographic coordinates and scientifically accepted formulas. The accuracy is typically within a very small margin of error.
If you are looking for driving or walking distance, the value may differ because road networks, traffic, and route choices are not considered in this calculation. For navigation, we provide a direct Google Maps link so you can switch instantly from distance to routing.
Yes. The website is fully responsive and works smoothly on all modern smartphones, tablets, and desktops. The input fields support touch-based typing, and the Google Places autocomplete works well on mobile browsers.
The layout adjusts automatically to different screen sizes, ensuring that forms, results, and links remain easy to read and interact with.
No. We do not permanently store your personal searches, IP addresses, or precise location history. Any location data used to compute results is processed in real time and not retained for tracking.
For API users, we only store minimal usage statistics (such as request counts) to enforce fair usage and prevent abuse of the system.
The “Use My Location” feature allows your browser to share your current geographic coordinates (with your permission). We then reverse-geocode those coordinates to a readable address and auto-fill the source field.
This is useful if you are traveling and want to calculate distance from your current position without manually typing your location.
Yes. Each distance result generates a unique page that you can copy and share via WhatsApp, email, or social media. The link contains the necessary information to reproduce the same result.
This makes Worldwide Distance Finder useful for trip planning, logistics discussions, and collaborative projects.
We display local time to help you understand time zone differences between locations. This is especially helpful for travelers, remote workers, and international businesses coordinating across regions.
For example, if you check the distance between New York and Tokyo, you can instantly see not only how far apart they are, but also the current time in each city.
Yes. Many businesses use Worldwide Distance Finder to estimate delivery distances, shipping logistics, service coverage areas, and market reach.
While the tool provides straight-line distance, it serves as a quick baseline before performing more detailed route planning in specialized software.
We do not draw routes directly on our website. However, we provide a one-click link that opens Google Maps with your selected locations preloaded for navigation.
From there, you can choose driving, walking, or transit directions as needed.
Absolutely. Students and researchers frequently use this tool for geography, climate studies, urban planning, and spatial analysis projects.
The combination of coordinate-based calculations and real place names makes it both scientifically valid and easy to interpret.
The Worldwide Distance Finder Distance API allows developers to programmatically calculate distances between two geographic coordinates. It is designed for integration into web apps, mobile apps, analytics platforms, and backend systems.
The API is secure, scalable, and optimized for both small projects and enterprise-level applications.
GET https://worldwidedistancefinder.com/api/distance
api_key (required)
source_lat (required)
source_lng (required)
destination_lat (required)
destination_lng (required)
Your API key authenticates your request and determines your usage limits. Latitude and longitude values must be valid decimal numbers.
GET https://worldwidedistancefinder.com/api/distance
?api_key=YOUR_API_KEY
&source_lat=12.98
&source_lng=77.59
&destination_lat=28.61
&destination_lng=77.23
Yes. For backward compatibility and developer convenience, we support both long and short parameter names:
slat → source_lat
slng → source_lng
dlat → destination_lat
dlng → destination_lng
GET https://worldwidedistancefinder.com/api/distance
?api_key=YOUR_API_KEY
&slat=12.98
&slng=77.59
&dlat=28.61
&dlng=77.23
{
"distance_km": 1779.12,
"plan": "starter",
"remaining": 9988,
"map_url": "https://www.google.com/maps/dir/?api=1",
"source": {
"lat": 12.0,
"lng": 77.0,
"local_time": "Sunday, 18 January 2026 • 06:47 PM"
},
"destination": {
"lat": 28.0,
"lng": 77.0,
"local_time": "Sunday, 18 January 2026 • 06:47 PM"
}
}
- distance_km: Calculated straight-line distance - plan: Your current subscription tier - remaining: Remaining requests in your plan - map_url: Quick link to Google Maps
HTTP 429 – Too Many Requests
{
"error": "Daily limit exceeded",
"upgrade_url": "/pricing"
}
You can upgrade your plan anytime from your dashboard to increase your usage limit.
Yes. The API is built for real-world applications and is used by startups, developers, and businesses for logistics, travel, and analytics.
It is optimized for speed, reliability, and security, with predictable response times.
Currently, each request handles one pair of coordinates. If you need batch processing, you can loop over multiple requests in your application.
We are evaluating bulk endpoints for future releases.
Yes. You can call the API from Android, iOS, or web applications. However, for security reasons, you should avoid exposing your API key directly in client-side code.
Instead, route requests through your own backend server.
Your API key should be treated like a password. Do not expose it in public GitHub repositories or frontend JavaScript.
If your key is compromised, you can regenerate it from your dashboard.
Yes. Your dashboard shows your current plan and remaining usage. More detailed analytics and charts are planned for future updates.
In rare cases of downtime, your application should handle errors gracefully and retry after a short delay.
We design our system for high availability and monitor performance continuously.
Yes. For high-volume or mission-critical applications, we offer custom enterprise plans with higher limits, dedicated support, and SLAs.
You can contact us via the website for enterprise inquiries.
For full technical details, visit: API Documentation