- Course angle and the distance between the two points on loxodrome (rhumb line).
Calculation of a distance on loxodrome (rhumb line) and course angle (azimuth) between two points with a given geographical coordinates.

- Course angles and distance between the two point on the orthodrome(great circle)
Calculates the distance between two point of the Earth specified geodesic (geographical) coordinates along the shortest path - the great circle (orthodrome). Calculates the initial and final course angles and azimuth at intermediate points between the two given.

- Distance between two cities
Calculates the distance between the two cities. Uses the directory of geographical city coordinates for the calculation.

Calculation of fuel spent based on the distance traveled and the average fuel consumption per 100 km, in liters, in fuel tanks and money

- New customs duties on import of cars by individuals
It calculates the amount of customs duties for the price, age and engine capacity of the car.

- Region determination by the registration plate
- When to drive after drinks?
Calculates time weathering of alcohol in the blood to normal