Converting Nautical miles to Km and back - YouTube
Nautical Mile Calculator - Calculator Academy
Territorial waters - Wikipedia
Appendix A (a)Length: m 1 km = 1000 m; 1 m = 100 cm = 1000 mm = 10 6 micrometer (μm) 1 inch (in.) = 2.54 cm 1 foot (ft) = 12 in. = 12*2.54 = cm = - ppt download