Lightning Converter
Astronomical Unit
An astronomical unit (AU) is a standard space measurement based on the distance from the Earth to the Sun—about 149.6 million kilometers or 93 million miles. It helps describe solar system distances in practical numbers rather than extremely large values.
Astronomers use AU values to measure orbits of planets, asteroids, and comets relative to Earth.
Nautical Mile
A nautical mile (NM) is a unit of distance used in aviation and maritime navigation. It is based on the Earth’s geometry and equals 1,852 meters or about 1.1508 miles. Because it relates directly to latitude and longitude, it makes charting courses across the ocean or sky more accurate for navigators.
Nautical miles work together with knots—1 knot = 1 nautical mile per hour—to measure travel speed at sea or in the air. Converting nautical miles to kilometers or standard miles is simple with a reliable converter.
