Is ml/gal the Same as gal/ml When Dealing with 1 Liter in Both Ratios?

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SUMMARY

The discussion clarifies that ml/gal is not equivalent to gal/ml, even when dealing with 1 liter in both ratios. Asburypark2010 emphasizes the importance of dimensional analysis and provides conversion examples, noting that 1 gallon is approximately 3.75 liters. The correct conversion must be applied based on the desired output, whether converting liters to gallons or vice versa. The conversation also highlights the existence of multiple definitions of a gallon, necessitating careful consideration of the specific gallon type being referenced.

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asburypark
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good afternoon,
good day,

is there some logic to assuming that ml/gal is the
exact same thing as gal/ml assuming that you are
dealing with 1 Liter in both ratios?

thank you so much

asburypark2010
 
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It makes about as much sense as assuming that 50 $/hour is the same as 50 hour/$. I have nothing against working for $50 per hour, but even in Chinese sweatshops they don't work 50 hours per $1.
 
I'm not really sure what you're trying to do, but given that 1 gallon is ~ 3.75 liters (approximately - you will want to check for a more exact conversion factor), you will need to use the appropriate relationship depending on what you're trying to convert based on your dimensional analysis.

For example, let's convert 10 liters into gallons.

10 liters * (1 gallon/3.75 liters) = 2.67 gallons

On the other hand, let's convert 10 gallons into liters.

10 gallons * (3.75 liters/1 gallon) = 37.5 liters

The relationship of 1 gallon ~ 3.75 liters holds in both cases, but in one case, gal/L is used, while L/gal is used in the other.
 
Mike H said:
I'm not really sure what you're trying to do, but given that 1 gallon is ~ 3.75 liters (approximately - you will want to check for a more exact conversion factor)...

Depends where you are for ml to gallons. There is more than one gallon. http://en.wikipedia.org/w/index.php?title=Gallon&oldid=452831533
 
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