How Much Fuel Is In My Tank?

How to read your tank gauge

Learn how to read your propane or heating oil tank gauge. For a more detailed guide, navigate to your tank-specific guide below.

How to read your propane tank gauge

First, you need to know the size of your tank. Then, look at your gauge, which is located underneath the hood-type cover on top of your tank. The gauge will look similar to the one shown here. To leave room for the gas to expand, your propane tank is considered full at 80%. So, if your tank gauge reads 70% and your tank size is: 

  • 58 gallons, then you have 41 gallons
  • 118 gallons, then you have 83 gallons
  • 120 gallons, then you have 84 gallons
  • 250 gallons, then you have 175 gallons
  • 500 gallons, then you have 350 gallons

Based upon your propane tank size and your propane tank gauge reading, the below grid represents the approximate number of gallons you have left in your propane tank.


Tank Size (Gallons)

Tank %581202503255001,000
5%3613162550
10%612253350100
15%918384975150
20%12245065100200
25%15306381125250
30%17367598150300
35%204288114175350
40%2348100130200400
45%2654113146225450
50%2960125163250500
55%3266138179275550
60%3572150195300600
65%3878163211325650
70%4184175228350700
75%4490188244375750
80%4696200260400800

Propane tank gauge


How to Read Your Oil Tank Gauge

Most heating oil tanks are 275 gallons in size and reading your gauge is like reading the gas gauge in your car. Read the gauge on the top of your tank. It will tell you if you are ½ full, ¼ full, or near empty. It should look like one of the gauges shown here.

Based upon your oil tank gauge reading, the below grid represents the approximate number of gallons remaining in your heating oil tank (based on a 275-gallon tank).


LevelGallons
1/830
1/460
3/890
1/2120
5/8160
3/4180
7/8210
Full240


Heating Oil tank gauge





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