How to Read your Gauge
How to Read Your Propane Tank Gauge
Checking Your Propane Level is Easier Than You Think
Knowing how much propane you have in your tank is key to making sure your home or business stays powered. Fortunately, reading your tank’s gauge is simple and quick.
Just open the tank lid and look at the round gauge near the top—it shows the percentage (%) of propane left in your tank. Most residential tanks use a float gauge that measures the level using a small float connected to a dial.
When Should I Order Propane?
If your tank reads 30% or less, it’s time to place an order. This gives us time to schedule your delivery and ensures you don’t run out—especially during high-use seasons.
💡 Pro Tip: After a refill, your tank will show around 80% full—this is normal! We leave space for propane to safely expand and contract with temperature changes.

How to Estimate Gallons Remaining
To estimate how many gallons of propane are left in your tank, multiply the tank’s total capacity by the gauge reading.
Example: 40% of a 500-gallon tank = 500 × 0.40 = 200 gallons remaining
Visual Reference Chart
Gauge Reading | 120-Gallon Tank | 250-Gallon Tank | 500-Gallon Tank | 1000-Gallon Tank |
---|---|---|---|---|
80% | 96 gallons | 200 gallons | 400 gallons | 800 gallons |
70% | 84 gallons | 175 gallons | 350 gallons | 700 gallons |
60% | 72 gallons | 150 gallons | 300 gallons | 600 gallons |
50% | 60 gallons | 125 gallons | 250 gallons | 500 gallons |
40% | 48 gallons | 100 gallons | 200 gallons | 400 gallons |
30% | 36 gallons | 75 gallons | 150 gallons | 300 gallons |
20% | 24 gallons | 50 gallons | 100 gallons | 200 gallons |
10% | 12 gallons | 25 gallons | 50 gallons | 100 gallons |
Visual Aid

Still Unsure? We Can Help
If you’re ever uncertain about your tank level or need help reading your gauge, give us a call. Our team is happy to assist or install a remote tank monitor for added peace of mind.
💻 Or visit our Order Gas page to request a delivery.