The distance from New York City to London is approximately 3,460 nautical miles. At a speed of 15 knots, it would take about 230 hours, or roughly 9.6 days, to complete the journey. This estimate assumes steady travel without significant delays or stops.
You can't sail from London to Cologne.
3 hours about
4 days
2 days
several days
6 and half days
100 days
how fast are you going?
approx 72 days
6 weeks
it takes about 2 hours by flight but im not sure how long it takes you to sail :/
If you are a sailor you will know the answer to this question. If you're not a sailor, don't try it.