## ››Convert light second to millimicron

 light second millimicron

How many light second in 1 millimicron? The answer is 3.3356409519815E-18.
We assume you are converting between light second and millimicron.
You can view more details on each measurement unit:
light second or millimicron
The SI base unit for length is the metre.
1 metre is equal to 3.3356409519815E-9 light second, or 1000000000 millimicron.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between light seconds and millimicrons.
Type in your own numbers in the form to convert the units!

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

1 light second to millimicron = 2.99792458E+17 millimicron

2 light second to millimicron = 5.99584916E+17 millimicron

3 light second to millimicron = 8.99377374E+17 millimicron

4 light second to millimicron = 1.199169832E+18 millimicron

5 light second to millimicron = 1.49896229E+18 millimicron

6 light second to millimicron = 1.798754748E+18 millimicron

7 light second to millimicron = 2.098547206E+18 millimicron

8 light second to millimicron = 2.398339664E+18 millimicron

9 light second to millimicron = 2.698132122E+18 millimicron

10 light second to millimicron = 2.99792458E+18 millimicron

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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: Millimicron

The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.

So 1 millimicron = 10-3 microns.

The definition of a micron is as follows:

a metric unit of length equal to one millionth of a meter

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