3D Interpolation Calculator

Determine the value at a given point (x and y-coordinate) from 3D unstructured data using linear and cubic interpolation. Result is given as a z-value at given point, as 3D graph and contour plot showing the resulting interpolation surface.

Each data point shall be unique i.e. no datapoints with identical x y combinations.
The calculator requires at least three data points.

Input cells not needed shall be kept empty.

Known data points as x, y and z-coordinates

x	y	z

Interpolate the z-value at a specific point

The given point shall be within the data points x and y-coordinates as the interpolator is not able to do any extrapolation.

x-coordinate	y-coordinate