How many light-day in 1 light seconds? The answer is 1.1574074074074E-5. We assume you are converting between light day and light second. You can view more details on each measurement unit: light-day or light seconds The SI base unit for length is the metre. 1 metre is equal to 3.8606955462749E-14 light-day, 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 days and light seconds. Type in your own numbers in the form to convert the units!
1 light-day to light seconds = 86400 light seconds
2 light-day to light seconds = 172800 light seconds
3 light-day to light seconds = 259200 light seconds
4 light-day to light seconds = 345600 light seconds
5 light-day to light seconds = 432000 light seconds
6 light-day to light seconds = 518400 light seconds
7 light-day to light seconds = 604800 light seconds
8 light-day to light seconds = 691200 light seconds
9 light-day to light seconds = 777600 light seconds
10 light-day to light seconds = 864000 light seconds
You can do the reverse unit conversion from light seconds to light-day, or enter any two units below:
A light day (also written light-day) is a unit of length. It is defined as the distance light travels in an absolute vacuum in one day (of 86,400 seconds) or 25,902,068,371,200 metres (~26 Tm).
Note that this value is exact, since the metre is actually defined in terms of the speed of light. The light day isn't very frequently used at all since there are few astronomical objects or distances of that magnitude; the Oort cloud, for example, is thought to extend between 290 and 580 light-days out from the Sun.
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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