1 gallon of propane weighs 4.11 lb. That’s if you measure it at 77°F, of course. It’s important to understand that the 4.11 lb/gallon density of LPG only applies at room temperature (77°F). As you know, gases (even liquified gasses such as liquid propane) expand with higher temperatures and shrink with lower temperatures.

So, how much propane tanks weigh you wonder? Well, one gallon of propane weighs 4.2 pounds. “Full” 20 lb propane cylinders should have 4.7 gallons of propane in them. The most common way to measure a full propane tank is by gallons. It can also be measured by pounds (one gallon = …

Jan 3, 2025 · Propane tank weights empty and full start at 1.3 pounds empty and 2.3 pounds full up to 215 pounds empty and 555 pounds full for sizes from 1 pound to 100 gallons. How much does a full propane tank weigh? They can weigh as much as 5,000lbs full!

Dec 16, 2021 · A gallon of propane weighs 4.2 pounds. A 20-pound propane tank contains 4.7 gallons of propane. To get the weight of propane in a 20-pound tank, multiply...

Oct 12, 2023 · To give you a general idea, a gallon of propane typically weighs around 4.2 pounds in liquid form at 60°F (16°C) and 5 gallons of propane weighs around 21.2 pounds. Keep in mind that this figure may change slightly under different conditions.

Jul 14, 2023 · How much does a (safely) FULL 20-pound propane tank weigh? Answer: A standard 20 pound propane tank when safely full (80% full), weighs the stamped “TW” (Tare Weight) plus 16.8 (the weight of 4 gallons of propane.. 4 x 4.2 LBS per gallon).

Feb 8, 2025 · How Much Does 1 Gallon of Propane Weight? The weight of 1 gallon of propane depends on its type and whether it is in liquid or gas form. Liquid propane weighs approximately 4.11 pounds (1.86 kg) per US gallon. For propane gas, the weight can vary based on its composition: Propane HD5: About 4.23 pounds (1.92 kg) per gallon.

To demonstrate that a gallon of propane does not always weigh 4.11 pounds, here are some propane densities at various temperatures: Higher temperatures cause the density of propane to decrease, the volume of propane to increase, and the pressure within a propane tank to rise.

Liquefied propane gas weighs 4.11 pounds per gallon at 77°F, which is equal to a density of 0.493 g/cm3 or 493 kg/m3. The exact density of propane depends on certain external factors like elevation and temperature.

Nov 3, 2023 · Every gallon of propane weighs 4.24 lb. And one pound of propane equals 0.236 gallons of volume. To determine how much propane is left, you can subtract the TW (tare weight) of your tank from the current weight. This will give you the weight of propane in the tank.