## ››Convert light second to zeptometre

 light second zeptometer

How many light second in 1 zeptometer? The answer is 3.3356409519815E-30.
We assume you are converting between light second and zeptometre.
You can view more details on each measurement unit:
light second or zeptometer
The SI base unit for length is the metre.
1 metre is equal to 3.3356409519815E-9 light second, or 1.0E+21 zeptometer.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between light seconds and zeptometers.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of light second to zeptometer

1 light second to zeptometer = 2.99792458E+29 zeptometer

2 light second to zeptometer = 5.99584916E+29 zeptometer

3 light second to zeptometer = 8.99377374E+29 zeptometer

4 light second to zeptometer = 1.199169832E+30 zeptometer

5 light second to zeptometer = 1.49896229E+30 zeptometer

6 light second to zeptometer = 1.798754748E+30 zeptometer

7 light second to zeptometer = 2.098547206E+30 zeptometer

8 light second to zeptometer = 2.398339664E+30 zeptometer

9 light second to zeptometer = 2.698132122E+30 zeptometer

10 light second to zeptometer = 2.99792458E+30 zeptometer

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You can do the reverse unit conversion from zeptometer to light second, or enter any two units below:

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## ››Definition: Light-second

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.

## ››Definition: Zeptometre

The SI prefix "zepto" represents a factor of 10-21, or in exponential notation, 1E-21.

So 1 zeptometre = 10-21 metre.

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