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Distance calculator

Find the distance between two 2D or 3D points, or estimate the surface distance between geographic coordinates.

Get started

  1. Use the example values or enter your own measurements.
  2. Calculate, then copy the result or download the available details.

Example

Input

2D: (0, 0) to (3, 4)

Expected result

Distance 5

Try it

Good to know

The calculation runs in your browser. Use consistent units in fields with no explicit unit.

Calculation method

Cartesian distance uses the Euclidean norm. Geographic modes use the WGS 84 ellipsoid and Lambert’s approximation. Nearly antipodal points use a spherical approximation. This is a surface estimate.

d=(x2−x1)2+(y2−y1)2+(z2−z1)2d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2}

Use the 2D or 3D mode for coordinates that already share a linear scale. Convert both points to the same unit first.

For geographic coordinates, north and east are positive. Use the degree-minute-second mode when a survey gives separate angular fields. The result estimates an ellipsoidal surface path.

Calculation mode

2D
  • X1
  • Y1
  • X2
  • Y2
3D
  • X1
  • Y1
  • Z1
  • X2
  • Y2
  • Z2
Latitude and longitude
  • First latitude · °
  • First longitude · °
  • Second latitude · °
  • Second longitude · °
Degrees, minutes and seconds
  • First latitude degrees
  • First latitude minutes
  • First latitude seconds
  • First latitude hemisphere · N / S
  • First longitude degrees
  • First longitude minutes
  • First longitude seconds
  • First longitude hemisphere · E / W
  • Second latitude degrees
  • Second latitude minutes
  • Second latitude seconds
  • Second latitude hemisphere · N / S
  • Second longitude degrees
  • Second longitude minutes
  • Second longitude seconds
  • Second longitude hemisphere · E / W