Lightyear
A lightyear (ly) is a unit of distance used in astronomy to measure vast spaces between stars and galaxies. It represents the distance light travels in one year—about 9.46 trillion kilometers or 5.88 trillion miles. Because space is so large, conventional units like kilometers or miles become impractical for such enormous scales.
The lightyear helps scientists and space enthusiasts describe distances in the universe more easily. Converting lightyears to smaller units highlights just how immense space truly is, and a conversion tool can help make these astronomical numbers more understandable.
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.