Generator Run Time Calculator

Generator Run Time Calculator

The above tool will calculate your generator run time if your generator fuel tank capacity and the gas or propane consumption per hour.

You simply fill the blank spot, it will automatically show you your generator run time.

If you are thinking of getting a generator or currently own one, it will be interesting to know the run time of the generator.

You might also want to know how long your generator can run continuously without stopping.

In this article, I will assist you in answering that.

Typically, a generator is a source of power for backup and is not designed to run continuously.

Generator Run Time Calculator

If you want to calculate the run time of your generator, you need to know the energy production of the generator and its fuel consumption per kilowatt-hour (KWH).

The fuel consumption of a generator will vary depending on various variables like climate, load, and brands. A generator run time calculator can assist in gathering more accurate data.

Some generator models are designed to provide power for up to 8 hours, some for 12 hours, and some can run for quite some time.

However, it is not advisable to keep the generator running for an extended period without letting it rest.

This is mainly because of the way a generator is assembled. Like any powered machinery, the engine needs maintenance, grease, and fuel.

Most generators run for around eight hours before they drain their fuel tank. So, if things like oil, fuel, maintenance, and proper usage are not provided, your generator won’t run for long.

All these must be provided for it to run for the expected time and to determine its actual run time.

If your generator runs on natural gas, it can run, it is not expected to shut down unless your gas supply goes down.


Generators that are specifically designed for prime power have a longer run time.

However, every generator gives an interval of 200 hours for changing the oil; therefore, that will be the maximum run time until you change the oil.

Also, your generator requires some time to rest so that you can refuel it, lubricate it, and cool it down.

best generators with longer run time capacity
Generator Run Time Calculator

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