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View Full Version : Converting Propane LB's into Propane Gallons

jasontheory
01-18-2007, 02:49 PM
How would I go about converting propane lb's that I am buying in cylinders into propane gallons so that I can look at my spend in one UOM?
Thanks for any help you can give me.

Robert Fogt
01-21-2007, 10:36 PM
I found a page here:
http://www.nwes.com/propane_info.htm

It says 4.24 pounds per gallon.

I assume that is just a rough estimate for the small tanks of propane. As the true density will differ with temperature and pressure.

Unregistered
11-27-2009, 11:35 AM
I need to convert 34,680 lbs of propane into gallons.

JohnS
11-28-2009, 03:47 AM
I need to convert 34,680 lbs of propane into gallons.

It is approximately 0.51 times the weight of water which is 8.33 lb/gallon, or 4.25 lb/gallon. Divide by 4.25 to get gallons.

jay
09-10-2011, 09:20 AM
[QUOTE=jasontheory;11216]How would I go about converting propane lb's that I am buying in cylinders into propane gallons so that I can look at my spend in one UOM?
Thanks for any help you can give me.[/QUOT
i bought 300 gallons convert it to what percent

Unregistered
11-11-2011, 05:42 PM
how many gallons are in 100 lbs propane tank?

Cerz1983
12-27-2011, 09:25 AM
It'S 4.24 With decimals so u gotta round up it's actually 4.25 lbs per gallon.

Unregistered
04-24-2012, 07:53 AM
how many gallons are in 100 lbs propane tank?

how many gallons in a 100 pound propane tank?

Unregistered
10-06-2012, 02:47 PM
In a 100 pound you will have about 16.4 gl

Unregistered
11-15-2012, 10:14 AM
actually at 100lbs tank of LP will be 22.9 gal. Thats what i belive because thats what this tank lists.

Go to tractorsupply and click on 100 lbs tanks and it will show you that it holds 22.9 gallons

so if it 22.9 gal = 100 lbs than it would be .229 gallons per pound. Or 4.366812227 Lbs per 1 Gallon

Does everyone argree?

Unregistered
12-19-2012, 12:36 AM
actually at 100lbs tank of LP will be 22.9 gal. Thats what i belive because thats what this tank lists.

Go to tractorsupply and click on 100 lbs tanks and it will show you that it holds 22.9 gallons

so if it 22.9 gal = 100 lbs than it would be .229 gallons per pound. Or 4.366812227 Lbs per 1 Gallon

Does everyone argree?

Not really 100lbs includes the weight of the tank also the tank is only filled to 80%

Unregistered
07-26-2013, 09:15 AM
Normally a tank is only filled to 85% of capacity so it would be somewhat less.

Unregistered
02-08-2014, 03:25 PM
the 100 lb tank name is just a category for the size of the tanks, it's not an exact measurement of the total capacity.

Unregistered
02-08-2014, 03:30 PM
the 4.29 lbs per gal number is correct, so 100 lbs of propane is 23.58 gals. If you've ever had one filled, you know it's never completely full, the hardware and mechanism on the tank (the overfill prevention device) have to have some room to work and take up some room themselves, so TSC is probably right that it will hold only 22.9 gals

Unregistered
02-13-2014, 01:58 PM
I think lbs is a more accurate measurement of what you are actually buying since it won't be temperature dependent. I believe the 20lb tanks you get at home depot are more than 5 gallons by volume to safely accommodate for expansion as others have mentioned.

Having said that, I've been a natural gas user until this past year, so who the hell knows. As a skeptic, I tend to believe they are going to short us anyway.