Distance Calculators · 29 free tools
Distance Calculators for Any Two Points
These distance calculators answer one question in a dozen ways: how far apart are two points? Start with the distance between two places calculator if you just need the number between two towns or addresses, use the straight-line distance calculator when you want the crow-flies figure with an explanation of the method, or open the distance matrix calculator when you need many origin–destination pairs at once.
Every result on this page is a geometric measurement on the WGS84 sphere — a great-circle arc, not a road. That is deliberate: geometric distance is the stable baseline you can reproduce, compare and check. When the real question is about travel, pair a result here with the driving distance calculator or a drive-time map, which follow the road network instead. The gap between the two numbers is often the most useful thing you learn.
Coverage is worldwide and every calculator states its method and units. Areas of the world with sparse place data are better served by entering coordinates directly — the latitude and longitude finder gives you a coordinate pair to paste in.
Start with these
The three tools that answer the most common question in this cluster. Each page states its method, coverage and limits.
All distance calculators tools
Every tool in this cluster is linked from this page, so nothing here depends on a search box or a JavaScript menu to be reachable.
Distance Between Two Places
PopularGreat-circle distance, bearing and midpoint between any two places.
WorldwideDistance Matrix Calculator
PopularPairwise great-circle distances between many places — table and CSV export.
WorldwideFlight Distance Calculator
PopularCalculate great-circle flight distance between two cities, airports or places.
WorldwideAirport Distance Calculator
Measure straight-line distance between airports or airport-area locations worldwide.
Major airportsAirport Route Finder
Does a non-stop flight exist between two airports? Check the route data.
Major airportsAs the Crow Flies Distance
Great-circle distance between two points on the WGS84 sphere.
WorldwideClosest Facility Finder
Find which of several places is nearest to an origin point.
WorldwideCompetitor Distance Map
Measure distance between your site and competitor locations.
WorldwideCoordinate Distance Table Generator
Turn up to 20 latitude/longitude points into a pairwise great-circle distance table.
WorldwideDistance Between Cities
Distance, bearing and the great-circle route between two cities.
WorldwideDistance Between ZIP Codes
How far apart are two US ZIP codes? Bearing and midpoint too.
US focusedDistance to Coast Context
Explore coastal proximity using maps and distance tools toward the shoreline.
WorldwideDistance to Equator
How far is a place from the equator along a meridian?
WorldwideDistance to Poles
How far is a place from the North or South Pole?
WorldwideDrive Distance Matrix Helper
Compare many place pairs — start with crow-flies matrix, refine key pairs with driving distance.
WorldwideFlight Time by Distance Calculator
Estimate air time from flight distance and average speed.
WorldwideGreat Circle Flight Route Calculator
Calculate great-circle distance, initial bearing and nautical miles between two coordinates.
WorldwideHorizon Distance
How far is the geometric horizon from your eye height.
WorldwideKilometers to Nautical Miles Converter
Convert kilometres to nautical miles and statute miles.
WorldwideLatitude Degrees to Nautical Miles
Convert latitude-degree difference into approximate nautical miles and kilometres.
WorldwideNautical Miles Between Coordinates
Calculate straight-line distance between two coordinates in nautical miles.
WorldwideNautical Miles to Kilometers Converter
Convert nautical miles to kilometres and statute miles.
WorldwideNautical Travel Time Calculator
Calculate travel time from nautical miles and knots.
WorldwideNearest Airport
Find major airports near a location with distance.
Major airportsOS Grid Reference Distance Calculator
Straight-line distance between two National Grid references.
WorldwideRhumb Line Distance Calculator
Calculate constant-bearing rhumb-line distance between two coordinates.
WorldwideShipping Distance Calculator
Great-circle distance between ports or cities for rough shipping estimates.
WorldwideTrail Distance Estimator
Compare two locations by straight-line distance, not trail length.
WorldwideUK Postcode Distance Calculator
Straight-line distance between any two UK postcodes.
WorldwideLearn more about distance calculators
Guides explain the method behind these numbers, the cases where it misleads, and how to choose between two tools that look interchangeable.
- Distance Calculation: Haversine, Geodesics & When It MattersWhy flat map arithmetic fails over large distances, what the haversine formula does, and when a full ellipsoidal geodesic is the better choice.Read the guide →
- Straight-Line Distance vs Road Distance: Why Your Trip Is Longer Than the Map SaysGreat-circle distance is the shortest path on the globe. Roads almost never follow it. How to read both numbers without fooling yourself.Read the guide →
- What 'As the Crow Flies' Actually Means — and When It Lies to YouGreat-circle distance is the planet's honest answer, but roads, borders and rivers charge a tax. A field guide to knowing which distance your question needs.Read the guide →
- How Far Can You See? The Quiet Math of HorizonsFrom a beach, a cliff or a cabin deck: horizon distance, observer height and terrain all matter. A practical walk through visibility math.Read the guide →
You may also need
These clusters answer the questions that usually follow a distance calculators result.
Best-of lists in this cluster
- Best Free Online Map Tools
If you only bookmark one thing, bookmark the directory; if you bookmark three, take a radius map, a distance calculator and a coordinate converter.
- Best Free Distance Calculators
Pick by question, not by brand: pairs of towns, many pairs at once, or coordinates you already have.
- Best Free Route Planners
Two stops is a calculator; more than two is an optimisation problem, and those need different tools.
- Best Online Geographic Calculators
Choose the calculator that names its model. The number matters less than knowing whether it came from a sphere, a network or a Census polygon.
- Best Free Mapping Tools for Students and Teachers
Classroom-safe means no accounts, no uploads and no data collection — which narrows the field considerably.
- Best Free Printable Outline Maps
Clean geometry, no watermark, and a format you can actually edit — the three things most free blank map sites get wrong.
About this hub
29 tools are grouped here because they answer the same family of questions. Every result is produced in your browser from the method stated on its own page; for legal, surveying, safety-critical or regulated decisions, verify the answer with the responsible authority.