Light-second conversions
The light-second conversion selector here selects the length/distance measurement unit to convert to starting from light-seconds. To make a conversion starting from a unit of length other than light-second, simply click on the "Reset" button.
About light-second
The light-second, or light second, is a unit of distance defined as the distance that light travels in free space (or vacuum) in one second.
The light-second is equal to 299.792458 × 106 meters (1 light-second = 299.792458 × 106 m), the base unit of length in the International System of Units (SI). The light-second is also equal to 299.792458 × 103 kilometers (km) (an SI unit of length), or approximately 186.28 × 103 miles (mi) or 983.57 × 106 feet (ft), which are US customary / Imperial units of length.
The light-second is used in astronomy, relativistic physics and telecommunications. Common astronomical measurement units include the parsec (1 light-second ≈ 9.7156 × 10-9 pc), the astronomical unit (1 light-second = 2.0040 × 10-3 AU) and the light-year (1 light-second = 31.688 × 10-9 ly).
Plural: light-seconds
Light-second conversions: a detailed list with conversions from light-seconds to other (metric, imperial, or customary) length and distance measurement units is displayed below.
- light-second to angstrom
- light-second to astronomical unit
- light-second to Bohr radius
- light-second to cable (International)
- light-second to cable (UK)
- light-second to cable (US)
- light-second to centimeter
- light-second to chain
- light-second to cubit
- light-second to decameter
- light-second to decimeter
- light-second to Earth radius
- light-second to Earth-Moon distance
- light-second to Earth-Sun distance
- light-second to fathom
- light-second to femtometer
- light-second to fermi
- light-second to foot
- light-second to furlong
- light-second to hectometer
- light-second to inch
- light-second to kilometer
- light-second to league
- light-second to light-day
- light-second to light-hour
- light-second to light-minute
- light-second to light-year
- light-second to meter
- light-second to micrometer
- light-second to micron
- light-second to mil
- light-second to mile
- light-second to millimeter
- light-second to nanometer
- light-second to nautical league
- light-second to nautical mile
- light-second to parsec
- light-second to picometer
- light-second to Plank length
- light-second to quarter
- light-second to rod
- light-second to yard