Find World Cities by Distance Hints
A free online tool to find cities by distance radius. Enter distances from known cities to pinpoint locations via triangulation. Perfect for solving Satle, SatZoom,UnZoomeed, and other geography games with distance hints.
Calculate City Distance
Find cities by entering distances from 2-3 known cities
How to Use
City Distance Triangulation uses simple geometry to find cities that match your distance criteria.
Select Two Cities
Choose two cities you know. These will be your reference points for triangulation.
Enter Distances
Input the distances from each reference city to your target city (in kilometers).
Find Matching Cities
We calculate where the distance circles intersect and show you all matching cities.
Who Use CityDistance.io?
Geography Games
Improve your skills in Satle, SatZoom and other geography guessing games. Learn to estimate distances and understand global geography better.
Geography Education
A powerful teaching tool for geography classes. Help students visualize distances and understand spatial relationships between cities.
Travel Planning
Find cities within a specific distance from multiple locations. Great for planning trips or finding meeting points.
Works Great With Popular Geography Games
Use our triangulation tool to improve your skills in these popular geography guessing games.
Perfect For City Games (Primary Use)
Satle, SatZoom, Unzoomed, Citydle – These city guessing games give you distance hints after each guess. Our triangulation tool is specifically designed to help you narrow down the answer.
Related Geography Games
Worldle, Globle, GeoGuessr – While these popular games focus on countries rather than cities, geography enthusiasts who enjoy them often also play city-based variants. If you're looking for a more challenging city-level experience, try the games above!
Calculation Method
Understanding the math behind city distance triangulation.
Great Circle Distance
We calculate the great circle distance (also called geodesic distance) between cities. This is the shortest path between two points on the Earth's surface, following the curvature of the planet.
Haversine Formula
Our calculator uses the Haversine formula, a well-established mathematical equation that accounts for Earth's spherical shape. It provides accuracy within 0.5% for most practical purposes.
Circle Intersection
By drawing distance circles around two or more reference cities, we find where they intersect. Cities near these intersection points match your distance criteria.
Frequently Asked Questions
What is city distance triangulation?
City distance triangulation is a technique to find a city's location by knowing its distances from two or more reference cities. By drawing circles with these distances as radii around reference cities, the intersection points reveal possible locations of your target city. It's commonly used in geography games like SatZoom and Satle
How accurate is the distance calculation?
Our calculations use the Haversine formula, which is accurate to within 0.5% for most distances. We use a tolerance of 10-15% when finding matching cities to account for the fact that distance hints in games are often rounded. For most geography games, this provides highly reliable results.
Can I use miles instead of kilometers?
Yes! Our calculator supports three distance units: kilometers (km), miles (mi), and nautical miles (nm). Use the unit selector dropdown next to the calculator title to switch between units. Your preference is automatically saved for future visits.
How do I solve SatZoom with distance hints?
When playing SatZoom you receive distance hints after each guess. Enter the capital city of the countries you've guessed as reference cities, input the distances shown, and click Calculate. The tool will show you cities that match those distances, helping you narrow down the answer.
Why do circles look distorted on the map?
The distortion you see is caused by the Mercator projection, which stretches areas near the poles. While the circles may look elliptical on the map, they represent true distances on Earth's surface. For very large distances (over 5000km), the distortion becomes more noticeable.
What cities are included in the database?
Our database includes over 33,000 cities worldwide with populations of 15,000 or more. Data is sourced from GeoNames, a comprehensive geographical database. You can search for cities in multiple languages including local names and common alternate spellings.
Why use three cities instead of two?
Two reference cities create two intersection points, giving you two possible answer regions. Adding a third city narrows this down to a single location. If you're getting too many results with two cities, try adding a third reference point for more precision.
Your Complete City Distance Solution
Distance Between Cities Calculator
Need to calculate the distance between two cities? Our city distance calculator uses the precise Haversine formula to compute great circle distances. Whether you need distances in kilometers, miles, or nautical miles, our tool delivers accurate results for any two cities worldwide.
City Triangulation Solver
Our triangulation solver helps you find unknown cities based on distance hints. Simply enter distances from two or three known cities, and we'll show you all possible matches. This is the perfect SatZoom helper and works with any geography game that provides distance clues.
Distance Radius Visualizer
Discover all cities within a specific distance radius from any city worldwide. Our distance radius tool draws interactive circles on the map and shows you cities sorted by population. Perfect for exploring regional city networks and understanding geographic relationships.
Free Online Geography Tool
CityDistance.io is completely free with no registration required. Use it as a teaching tool for geography education, a travel planning assistant, or simply to explore how far cities are from each other. Learn more about our tool and its data sources.