# How do you use scientific notation to express a lightyear in miles?

##### 1 Answer

Mar 25, 2015

I'll do it in meters - you can convert this yourself.

Speed of light

We may round that to

Multiply by

On your calculator you do this like:

Now add all the other **exponents** to this final (

So the final **answer**

*(just to make sure I checked with Wikipedia, and it checks)*

It should be easy to do the same with miles

(your answer should be