RV Generator Size Calculator
Here’s a comprehensive table summarizing what you need to know about RV generator sizes:
| RV Type | Electrical System | Typical Power Needs | Recommended Generator Size | Key Considerations |
|---|---|---|---|---|
| Small Travel Trailer (<20 ft) | 30 amp | 1500-2500W | 2000-3000W | Portable inverter generators are ideal |
| Mid-size Travel Trailer (20-30 ft) | 30 amp | 2000-3000W | 3000-4000W | Consider paralleling capability for flexibility |
| Large Travel Trailer/5th Wheel (30-40 ft) | 30 or 50 amp | 3000-5000W | 5000-7500W | May need to run multiple ACs |
| Class B Camper Van | 30 amp | 1500-2000W | 2000-3000W | Focus on compact, quiet models |
| Class C Motorhome (<25 ft) | 30 amp | 2500-3500W | 3500-4500W | Balance between power and portability |
| Class A Motorhome (30-40 ft) | 50 amp | 5000-8000W | 6000-8000W | Consider built-in generators |
| Luxury Motorcoach (>40 ft) | 50 amp | 8000-15000W | 10000-13000W | Diesel generators often preferred |
Additional Factors to Consider:
- Starting watts vs. running watts (especially for AC units)
- Fuel efficiency and run time
- Noise levels (aim for <60 dB for campground use)
- Portability vs. built-in options
- Parallel capability for expandability
- Inverter technology for sensitive electronics
- Fuel type (gasoline, propane, or dual fuel)
- Altitude performance
- Climate conditions where you’ll be camping
- Future power needs and upgrades
Remember to calculate your specific power requirements based on the appliances and devices you plan to use simultaneously12467. It’s generally better to have slightly more capacity than you think you’ll need to account for unexpected power demands and future upgrades.