How long would it take to sail from New York City to Spain at 20 kn?

To estimate the sailing time from New York City to Spain, we first need to consider the distance, which is approximately 3,500 nautical miles. At a speed of 20 knots, the calculation would be: 3,500 nautical miles divided by 20 knots equals 175 hours. This translates to about 7.3 days of continuous sailing, not accounting for any stops, weather conditions, or navigational delays.