Get distance between 2 locations

gistfile1.txt

-(float)kilometersfromPlace:(CLLocationCoordinate2D)from andToPlace:(CLLocationCoordinate2D)to  {
    
    CLLocation *userloc = [[CLLocation alloc]initWithLatitude:from.latitude longitude:from.longitude];
    CLLocation *dest = [[CLLocation alloc]initWithLatitude:to.latitude longitude:to.longitude];
    
    CLLocationDistance dist = [userloc distanceFromLocation:dest]*4;
    
    
    NSString *distance = [NSString stringWithFormat:@"%f",dist];
    
    return [distance floatValue];
    
}