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Reading a Propane Tank Gauge

We’re getting down to business! We’re giving you a simple how-to for the next time you take a look at your tank gauge before calling us for delivery or service. Knowing how to read your fuel gauge will help accurately relay the information to one of our Customer Care Representatives on the other end.

It’s a common misconception that the gauge shows the total amount of gallons in the tank. However, it actually displays the propane level as a percentage of the capacity of your tank.

While not every propane tank has the same gauge, they all have the same purpose in mind: to show you how much propane is in your tank. Most tank gauges are “float gauges” (much like a fuel gauge in a vehicle – think pop pop’s old truck!), which reads the level of liquid propane in the tank by the floating arm. This does so by a float assembly that is within the tank and controls the arm gauge. While the level drops, the float gauge will also.

How to read a propane tank fuel gauge

Check out the images below for a few examples of some different propane tank fuel gauges you might see:

Using example B. as our spotlight, notice how the floating arm is at 40%.

Taking this a step further, using that 40% from Example B, we can figure out just how much propane is left in your tank based on your tank size and gauge reading we’ve just done. KEEP THIS HANDY – you’re going to thank us for this one! To make life simpler and spare you from doing the math, we’ve put together a handy chart. This is quick glance at how many gallons you have left based on your propane fuel tank gauge reading:

Gauge Reading120 Gallon Tank250 Gallon Tank500 Gallon Tank1,000 Gallon Tank
80%96 gallons200 gallons400 gallons800 gallons
70%84 gallons175 gallons350 gallons700 gallons
60%72 gallons150 gallons300 gallons600 gallons
50%60 gallons125 gallons250 gallons500 gallons
40%48 gallons100 gallons200 gallons400 gallons
30%36 gallons75 gallons150 gallons300 gallons
20%24 gallons50 gallons100 gallons200 gallons
10%12 gallons25 gallons50 gallons100 gallons

There’s always Automatic Delivery!

If calculating your fuel level isn’t something you want to take on, consider our Automatic Fuel Delivery option. We’ll monitor your propane usage using our tried-and-true formula which accounts for K-Factors, application usage methods, and weather. We schedule your deliveries within the perfect timeframe of need to give you total peace of mind. Let us take on the tracking of your gallons!­

While we always advocate for Automatic Delivery, knowing how to read your propane tank fuel gauge is always excellent resident knowledge! Keep this guide handy for the future!