It most likely goes there is no saying, yet a 100 lb. Propane tank is design to hold 100 pounds of propane. Straight-forward, right? Well, not quite… So, how plenty of gallons of propane room there in a 100 lb tank?

Because propane is stored and delivered as a liquid, it can be advantageous to recognize what this looks choose in terms of gallons. If there’s a fairly simple answer, there are a few different factors that can affect how numerous gallons room actually in a 100 lb. Tank.

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The an easy Answer


To put it simply, 0.236 gallons = 1 lb of propane. 

This is true when the propane tank is at a temperature of 60 levels Fahrenheit. 

So, 0.236 gallons x 100 pounds = 23.6 gallons.

A 100 lb. Tank holds 23.6 gallons and weighs 170 lbs. As soon as full.

Other Factors

As mentioned, there are added factors that can impact the overall amount that usable propane within the tank. These encompass water capacity and tank temperature. Let’s take it a closer look at at each of this to see exactly how they impact your propane tank supply. 

Water Capacity

Each gas cylinder will have actually a water capacity number stamped ~ above the collar and will look at something prefer “WC 240.” This is the complete mass of liquid – declared in pounds – that a cylinder might hold if filled entirely with water. 

However, once filled through propane, gas cylinders can only be filled approximately 42% that the water capacity. This is come accommodate because that the fluctuations in tank press as temperatures change.

For this example, 240 (water capacity) x 0.42 (max. Capacity) = 100.8 lb.

So ours tank have the right to actually hold a maximum of 100.8 lb when filled.

As discussed above, we know that every lb. Propane is 0.236 gallons.

This way that 0.236 gallons x 100.8 pounds = 23.789 gallon propane.

Again, this doesn’t do a vast difference, yet it can still it is in a variable to consider when deciding what size of tank to use.

How Temperature influence Tank Pressure


Propane does no sit unaffected in ~ propane tanks. The optimal ambient temperature (which was assumed in the example above) is 60 degrees Fahrenheit. At this temperature, a tank that has actually been filled would develop a analysis of around 40% top top a tank gauge. 

As temperature rise, the tank gauge analysis will go up. It’s still the very same weight the propane in the tank – the molecules have just become more spread out. 

The reverse happens when temperatures drop, so nothing be surprised when that reading goes down. This is not due to the fact that there is less usable propane in the tank – the propane has just become much more dense or compact, and also the volume has actually decreased. The cooler the temperature, the more the levels will certainly change. 

The lower pressure can reason tanks to prevent working properly. Keeping tank press up may require much more frequent refills; even when over there is quiet “usable” propane in the tank, the volume is not high enough and extr propane should be added to lug tank pressure ago up. 

How can I store My Propane at the ideal Temperature?

Constantly make a expedition to acquire a tank refill can be costly and also frustrating. Luckily, there is another way to keep your tank working nicely with plenty the propane at the ready when you room – Propane Tank Heaters. 

Propane tank heaters effortlessly transfer warmth to the tank, increasing the BTU (British heat Energy) the the propane. In an easy terms, this heat power works by transferring heat from one object (the tank heater) to an additional (the tank) – raising the activity of that is molecules and keeping it at optimal functioning temperature. 

A well-made heater will save you the problem of do time-consuming, not to mention expensive, refills by elevating your tank temperature and, consequently, your in its entirety tank pressure. This type of heater is a safety-certified electric blanket that wraps approximately the entire surface of your tank, no issue what size tank that is. The absolutely the “no-hassle” technique to temperature regulation, permitting you to usage every gallon the propane in ~ the tank.

 If you commonly use propane throughout cold weather months, a tank heater is absolutely worth checking out!


Choose Propane Tank Heaters

Here in ~, we create the finest propane tank heating services on the market. Below are several of the services you deserve to expect from one of our carefully-made tank heaters.

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Maintains Optimal ambient Temperature Wide variety of Tank sizes to select FromProvides Uniform barrier of Heat across The entire TankReduces costs By Optimizing Temperatures and also Increasing Tank EfficiencyLimits quantity of crucial RefillsCreates for sure Storage Conditions, Without threat of ExplosionsEasily Installed and Low MaintenanceSafety Certified by UL/CSA/CE

Here in ~, our skilled team specialization in heating all gas distribution systems. For her propane-heating needs, there merely is no much better choice 보다 

Give us a speak to at 801.506.0198 with any kind of questions you have. We’re constantly ready come help.