Contour Interpolation Calculator

Contour interpolation estimates the elevation at a point between two known contour lines based on distance and elevation difference.

Enter the elevations of the two nearest contours and the distances of the point from each contour line.

Surveyors can calculate intermediate elevations for mapping, grading, and site design by interpolating between contour lines.

It allows accurate estimation of terrain elevations without physically surveying every point, saving time and improving field efficiency.