How Long Does A Propane Tank Last On A Grill?

The actual run time of your propane tank will depend on factors such as the outdoor temperature, the amount of wind, and the size of the flames on your grill.

Here’s a step-by-step guide on how to estimate how long a propane tank will last on your propane grill:

Step 1:

Check the weight of your propane tank.

Most propane tanks have their empty weight printed on the collar or handle. This weight can vary depending on the size of the tank, but it’s usually around 18-20 pounds for a standard 20-pound tank.

Step 2:

Check the BTU rating of your grill.

BTU stands for British Thermal Units, which is a measure of how much heat a grill can produce per hour. You can usually find the BTU rating of your grill in the owner’s manual or on the manufacturer’s website.

Step 3:

Calculate the burn rate of your grill.

To calculate the burn rate, divide the BTU rating of your grill by the number of hours it can run on a full tank of propane. For example, if your grill has a BTU rating of 30,000 and can run for 10 hours on a full tank, the burn rate would be 30,000 / 10 = 3,000 BTUs per hour.

Step 4:

Estimate the run time of your propane tank.

To estimate how long your propane tank will last, divide the weight of the propane in the tank by the burn rate of your grill. A full 20-pound propane tank contains about 4.7 gallons of propane, which is equivalent to 430,000 BTUs.

Using the burn rate from the previous example (3,000 BTUs per hour), the estimated run time of the tank would be 430,000 / 3,000 = 143 hours.

how long does a propane task last on a grill infographic

What are the factors that help increase the life of a propane tank?

There are several factors that can increase the lifespan of a propane tank. Here are some of the most important ones:

Regular maintenance:

Propane tanks should be inspected and maintained regularly to ensure they are in good condition. This includes checking for rust, leaks, and other damage, as well as ensuring that the valves and fittings are in good working order.

Proper storage:

Propane tanks should be stored in a cool, dry place, away from direct sunlight and sources of heat. They should also be stored upright and secured to prevent tipping or damage.

Safe handling:

Propane tanks should always be handled with care, and never dropped or subjected to rough treatment. They should also be transported and stored in an upright position, with the valve closed and the protective cap securely in place.

Proper usage:

Propane tanks should only be used with appliances and equipment that are designed for propane use. The tank should never be overfilled, and the valve should always be closed when the tank is not in use. Find the complete process to use propane grills.


The amount of time a propane tank lasts on a grill depends on several factors such as the BTU rating of the grill, the burn rate, the weight of the propane tank, and external factors such as the outdoor temperature and wind conditions.

By following proper handling and storage procedures, and regular maintenance, the lifespan of a propane tank can be increased. It is important to always ensure that the tank is in good condition and to have a spare propane tank on hand in case the first one runs out unexpectedly.

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