How Do You Read A Propane Tank Gauge. A 500 gallon propane tank at 40% = 500 x 0.4 = 200 gallons remaining in the tank. The last 20% of the tank is reserved for gas expansion.
You should easily be able to see how much propane you have left in your tank. As gas is used, it gets lighter. The drawback here is that you.
If you want to skip the math, here’s a handy chart that will tell you how much gas is left in your propane tank based on your tank size and your gauge reading:
As gas is used, it gets lighter. This gauge will show a range indicating the tank is between 5 percent and 95 percent full. You can perform some simple math to determine how much gas is in your propane tank. Ad tank level radar gauge for level and temperature measurement