E6B-type Calculator With the E6B-type Calculator you can do all necessary calculations for flight and a lot more. As you can see below there are four different panels in the calculator. In the E6B-view you can select among different preprogrammed calculation models like Density Altitude, New Coordinates, TAS... and a whole lot more. Number of decimals is variable between 0 and 8. The Conversions-view has a lot of different units to choose from. Start by selecting a unit in the top field then in the lower field. Enter a known value in either of the two lowest fields and the result will be shown instantly. Number of decimals is variable between 0 and 8. The Free Formula-view can be used to test mathematical formulas. One unknown variabel can be in the formula. That variable value can be changed in the lower field. The result is shown instantly. Number of decimals is variable between 0 and 16. The Fuel-panel is used to find volumes or weights for 100LL and Jet-A1 fuels.