How many light-year in 1 light seconds? The answer is 3.1688087814029E-8. We assume you are converting between light year and light second. You can view more details on each measurement unit: light-year or light seconds The SI base unit for length is the metre. 1 metre is equal to 1.0570008340246E-16 light-year, or 3.3356409519815E-9 light seconds. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between light years and light seconds. Type in your own numbers in the form to convert the units!
1 light-year to light seconds = 31557600 light seconds
2 light-year to light seconds = 63115200 light seconds
3 light-year to light seconds = 94672800 light seconds
4 light-year to light seconds = 126230400 light seconds
5 light-year to light seconds = 157788000 light seconds
6 light-year to light seconds = 189345600 light seconds
7 light-year to light seconds = 220903200 light seconds
8 light-year to light seconds = 252460800 light seconds
9 light-year to light seconds = 284018400 light seconds
10 light-year to light seconds = 315576000 light seconds
You can do the reverse unit conversion from light seconds to light-year, or enter any two units below:
A light year, abbreviated ly, is the distance light travels in one year: roughly 9.46 × 1012 kilometres (9.46 petametres, or about 5.88 × 1012 (nearly six trillion) miles). More specifically, a light year is defined as the distance that a photon would travel, in free space and infinitely far away from any gravitational or magnetic fields, in one Julian year (365.25 days of 86400 seconds each).
A light-second is a unit of length. It is defined as the distance light travels in an absolute vacuum in one second or 299,792,458 meters. Note that this value is considered exact, since the meter is actually (as of 1983) defined in terms of the light second. It is just over 186,282 miles and almost 109 feet.
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