Camping & RV Generator Size Calculator
Select the equipment you expect to run at the same time. This tool is meant for camping, RV, cabin, and outdoor power planning.
Last updated: May 2026
Buying and sizing notes
- If RV air conditioning is the main goal, size around the AC startup demand, not just running watts.
- Soft-start kits can reduce AC startup demand, but verify compatibility and specs.
- Fuel type, runtime, noise rating, and outlet type matter as much as wattage for camping use.
How to use this estimate
What this includes
- The required inputs shown on this page
- common planning assumptions
- optional advanced adjustments where provided
What it does not include
- site-specific professional design
- local code approval
- manufacturer-specific requirements
- installation quality
Common mistakes
- Leaving a required input at the default when your situation is different
- ignoring product labels or ratings
- treating the estimate as an exact final answer
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