gallons versus pounds

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gallons versus pounds

Postby virginiafigueroa » Tue Mar 09, 2004 2:09 am

I have to compare and determine the best price for a product, one vendor is using gallons the other pounds. How do I break this down to determine who is giving me the best price?
virginiafigueroa
 

Re: gallons versus pounds

Postby Knight » Thu Mar 11, 2004 2:33 am

virginiafigueroa wrote:I have to compare and determine the best price for a product, one vendor is using gallons the other pounds. How do I break this down to determine who is giving me the best price?

You need need to know its weight to volume ratio.

A gallon of water weights 8.34 pounds. Consider what a gallon of lead would weigh... 94.56 lbs!

The figure you need is Specific Gravity. Water has a specific gravity of 1, where lead has a specific gravity of 11.34.

The easiest way to do what you want is to convert weight of the the first vendors product to grams, and the volume of the second vendors procudt to ml. Next multiply the volume in ml by the specific gravity. That will give you the weight of the second vendors product. Now you can compare the two costs using the same standard.
William J. Knight
Health Physicist
Los Alamos National Labs
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Re: gallons versus pounds

Postby Marlene » Thu Oct 13, 2005 6:57 pm

virginiafigueroa wrote:I have to compare and determine the best price for a product, one vendor is using gallons the other pounds. How do I break this down to determine who is giving me the best price?


Decide on which basis to compare, pounds or gallons. If pounds, multiply the number of gallons by 8.33 to get pounds. If comparing gallons, divide the number of pounds by 8.33 to get gallons.
Marlene
 


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