19262 miles and 892 yards
31,000 feet = 5.87 miles.
There are 206.5 kilometres in 128.3 miles.
1.56 kilometres = 0.96933906 miles
2000 miles = 3,218.7 kilometres
1416.22 kilometres is 880 miles.
About 334.74 kilometres.
About 1057.34 kilometres.
67,592.448 kilometres.
2.012 kilometres
13.0035 kilometres.
31000 km per hour is roughly 19263 miles per hour. Note how I said miles per hour and not miles. You can not convert a speed to a distance. You can only convert units that measure the same sort of thing, like speed.
About 67 kilometres or 42 miles. It would take about an hour, depending on traffic.