## ››Convert femtometre to light week

 femtometer light-week

 Did you mean to convert femtometre fermi to light-week

How many femtometer in 1 light-week? The answer is 1.813144785984E+29.
We assume you are converting between femtometre and light week.
You can view more details on each measurement unit:
femtometer or light-week
The SI base unit for length is the metre.
1 metre is equal to 1.0E+15 femtometer, or 5.5152793518213E-15 light-week.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between femtometers and light weeks.
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You can do the reverse unit conversion from light-week to femtometer, or enter any two units below:

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## ››Definition: Femtometre

The SI prefix "femto" represents a factor of 10-15, or in exponential notation, 1E-15.

So 1 femtometre = 10-15 metre.

## ››Definition: Light-week

A light-week (also written light week) is a unit of length. It is defined as the distance light travels in an absolute vacuum in one week (seven days of 86,400 seconds each) or 181,314,478,598,400 metres (~181 Tm).

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