Distance Between Points Calculator

Calculate the distance between two points in 2D or 3D. Free online distance formula calculator.

The Distance Between Points Calculator finds the straight-line distance between two coordinates using the distance formula derived from the Pythagorean theorem. Works for 2D and 3D points. Essential for mapping, navigation, geometry, and any application requiring the Euclidean distance between locations.

Common use cases

  • Map distance calculations
  • Game development (collision detection)
  • GPS and navigation
  • Geometry problems
  • Cluster analysis in data science

How to use

  1. Select 2D or 3D mode
  2. Enter coordinates of Point 1
  3. Enter coordinates of Point 2
  4. Click calculate for distance
  5. View the step-by-step calculation

FAQ

What is the distance formula?

d = √((x₂-x₁)² + (y₂-y₁)²) for 2D, add (z₂-z₁)² under the root for 3D.

Is this the shortest distance?

Yes, this is the Euclidean (straight-line) distance, the shortest path between two points.

How does this relate to Pythagorean theorem?

The distance formula IS the Pythagorean theorem applied to the coordinate differences.

What about spherical distance (on Earth)?

For geographic coordinates, use the Haversine formula for great-circle distance on a sphere.