Best Tools to Measure Distance Online
There are many online tools for measuring distance between locations. This guide reviews the most popular options and helps you choose the right one.
What to Look For in a Distance Tool
- Accuracy — Does it use the Haversine formula?
- Units — Does it support km, miles, and nautical miles?
- Speed — How quickly does it return results?
- Privacy — Does it track your searches?
- Additional features — Travel time, map visualization, comparison
Types of Distance Tools
Straight-Line Distance Calculators
These use the Haversine formula for great-circle distance. SnapDistance falls into this category.
Driving Distance Tools
Calculate distance along actual road networks with turn-by-turn routes.
Flight Distance Tools
Since flight distance closely matches straight-line distance, general calculators work well for this.
SnapDistance: Free Distance Calculator
- All distance calculations run in your browser
- Results in kilometers, miles, and nautical miles simultaneously
- Estimated driving and flight times included
- Interactive map visualization
- No account required
- Multi-location comparison
Popular Routes to Try
Test any distance tool with these well-known routes:
- London to Paris — 344 km
- New York to Los Angeles — 3,944 km
- Tokyo to Osaka — 397 km
- Sydney to Melbourne — 714 km
- Dubai to London — 5,475 km
Or explore all routes from a specific city: from New York, from London, from Dubai.
Frequently Asked Questions
Are free distance tools as accurate as paid ones?
For straight-line distance, yes. The Haversine formula produces the same accurate results regardless of the tool.
Which tool is best for privacy?
Tools that run calculations client-side offer the best privacy. SnapDistance is designed with this approach.
Can I measure distance on a phone?
Yes. Most online tools, including SnapDistance, work on mobile browsers without an app.