What size generator do I need for RV & camping?

Choosing a generator for RV and camping use is about more than just a wattage number. You also care about noise, fuel use, and how much you really need to run at once.

This guide walks through typical generator size ranges for different RV setups and camping styles.

Common RV generator size ranges

The right generator size for RV & camping depends on your rig, climate, and comfort needs. In broad strokes:

1,000–2,000W: basic battery charging, lights, and small devices.
2,000–3,000W: small RVs and trailers, possibly a single modest A/C unit.
3,000–4,500W: many travel trailers and fifth wheels with one A/C plus other loads.
5,000W+: larger rigs with multiple A/C units or heavier electrical loads.

What you want to run at camp

Think through your trip like this:

Do you need A/C, or is it mostly for shoulder seasons and cooler climates?
Will you be running microwaves, coffee makers, or hair dryers frequently?
Are you okay cycling heavy loads (like turning A/C off while using the microwave)?

Many campers find that a 2,000–3,000W inverter generator is a great balance between quiet operation, fuel use, and capability. Larger rigs and hotter climates often push people toward 3,500–4,500W or more.

Noise and campground rules

For RV parks and campgrounds, noise level matters as much as wattage. Inverter generators are usually much quieter than open-frame contractor units, which makes them better neighbors and more likely to fit within campground rules.

Tip: you can use the runtime, fuel cost, and size planners on the GeneratorCalc home page to turn these ideas into rough numbers for your specific generator and situation.