The distance from Copenhagen Airport (CPH) to Amalienborg Palace is approximately 15.0 kilometers. The travel time can vary depending on traffic conditions, but it generally takes around 22 minutes by car or taxi.
As for the taxi cost, it can also vary based on factors such as traffic, time of day, and specific taxi company. However, as a rough estimate, the taxi fare from Copenhagen Airport (CPH) to Amalienborg Palace can range from approximately $103, including additional charges such as luggage fees and waiting time.