Geodesic Calculator Added To NinjaCalc

NinjaCalc has a new calculator, a “Two Coordinate Geodesics” calculator that can help you analyse properties of two coordinates/points on the earths surface (defined by latitude/longitude).

Given two points in latitude/longitude form (both degrees and radians supported), the calculator can give you the great circle (shortest) distance between the two points, and the initial/final bearings. This calculator can also find an intermediate coordinate/point between the two coordinates, given a fractional amount (such as 0.5). All of these properties are calculated using the Haversine formula.

A screenshot of the “Two Coordinate Geodesics” calculator in NinjaCalc.

All these properties are shown on a interactive model of the earth in 3D (the sphere can be rotated). 

This calculator can be found in the NinjaCalc web app at

Calculators Upgraded And Have Their Own Page

The electronic online calculators have been upgraded! They now

  • Have selectable engineering units
  • Have a “Calculate What?” button, meaning you choose which variable you know, and which to calculate
  • Features shading of the calculated variables, so you know which ones you have to type in yourself
  • Has live calculating that re-calculates everytime you change something.
  • Features a “variable diagram”, which helps graphically explain the equation and what your calculating

The calculators now have their own page, which shows the collection of calculators that are used on the electrical pages of the CladLabs site.