# Propane weight

• posted on September 24, 2016, 3:28 pm
500gal propane heating tank -how much does the gas alone weigh?
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• posted on September 25, 2016, 2:48 pm
In typed:

I did a Google search for you:
http://lmgtfy.com/?q=How+many+gallons+are+in+a+500-pound+propane+tank%3F
One of the resulting links shows this:
https://eastern.com/residential-propane/propane-tanks
Looks like a 500 gallon propane tank actually holds 400 gallons of propane when full. At 4.2 pounds per gallon of propane (the weight of liquid propane), a "full" 500-gallon propane tank (80% -- 400 gallons) would have about 1,680 pounds of propane in it.
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• posted on September 25, 2016, 3:11 pm
In typed:

Oops, my Google search should have been for,
"How many gallons are in a 500 gallon propane tank?"
and not for,
"How many gallons are in a 500-pound gallon propane tank?"
http://lmgtfy.com/?q=How+many+gallons+are+in+a+500+gallon+propane+tank%3F
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• posted on October 2, 2016, 11:41 am
On Sunday, September 25, 2016 at 11:10:59 AM UTC-4, TomR wrote:

This is the reason why people should do their own research instead of comin g to places like this for answers. Especially when it involves “ma fh". <-thats how the black people say it.. The OP could have easily calle d the local propane company and they would have told him the answer.
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• posted on September 25, 2016, 8:49 pm

Not exactly. A 500 gallon tank can hold up to 500 gallons of propane. Suppliers won't fill it 100% to allow for expansion and to allow enough surface area for the gas to bubble off the liquid at a sufficient rate to supply high demand like furnaces.
The supplier link provided suggests using 400 gallons as a working number. My supplier regularly fills to 90%, so 450 gallons. That said, it depends on what the meter reads...
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• posted on September 26, 2016, 2:52 pm
In wrote:

Makes sense.
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• posted on September 26, 2016, 6:38 pm
message

The gas weighs next to nothing.
The liquid weighs 4.2 lbs/gallon
So, what is in the tank?
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• posted on September 29, 2016, 5:27 pm
replying to Frank, Tony944 wrote: While we think of "Propane" is being same all over it is not, it depend what area (locality) you are in, because of change in temperature Propane is mix for particular area so Gas pressure can be high enough for user in cold parts of country compare to, in higher temp. Area where gas pressure can be kept lower for same delivery capacity. When I said Gas pressure I am talking about Liquid it self, Liquid pressure changes with Local temperatures. That is why mixture is used, so that demand pressure is reliable for that locality. Is been many years since I worked with this but the gas companies should be able to respond to this!