/* some useful conversion factors */

#ifndef __DISTANCE_H__
#define __DISTANCE_H__


#define METERS_TO_INCHES ((double)1/0.0254)
#define MILES_TO_INCHES  ((double)5280*12)

#define FEET_TO_METERS 0.3048
#define MILES_TO_METERS 1609.344
#define NAUT_MILES_TO_METERS 1852.0
#define KILOMETERS_TO_METERS 1000.0


#endif /* __DISTANCE_H__ */
