In this article I will show you how to convert 399 parts-per million into parts-per billion. Throughout the explanation below I might also call it 399 parts-pm to parts-pb. They are the same thing!
How to Convert Parts-per million to Parts-per billion
A parts-per million is smaller than a parts-per billion. I know that a parts-pm is smaller than a parts-pb because of something called conversion factors.
Put very simply, a conversion factor is a number that can be used to change one set of units to another, by multiplying or dividing it. So when we need to convert 399 parts-per million into parts-per billion, we use a conversion factor to get the answer.
The conversion factor for parts-pm to parts-pb is:
Now that we know what the conversion factor is, we can easily calculate the conversion of 399 parts-pm to parts-pb by multiplying
0.001 by the number of parts-per million we have, which is 399.
So, the answer to the question "what is 399 parts-per million in parts-per billion?" is 0.399 parts-pb.
Parts-per million to Parts-per billion Conversion Table
Below is a sample conversion table for parts-pm to parts-pb:
|Parts-per million (parts-pm)||Parts-per billion (parts-pb)|
Best Conversion Unit for 399 parts-pm
Sometimes when you work with conversions from one unit to another, the numbers can get a little confusing. Especially when dealing with really large numbers.
I've also calculated what the best unit of measurement is for 399 parts-pm.
To determine which unit is best, I decided to define that as being the unit of measurement which is as low as possible, without going below 1. Smaller numbers are more easily understood and can make it easier for you to understand the measurement.
The best unit of measurement I have found for 399 parts-pm is parts-per million and the amount is 399 parts-pm.