Solar planning
RV solar calculator
Start with your daily energy use, expected sun hours, and how many buffer days you want. The calculator estimates a practical solar and battery setup for that usage pattern.
Solar calculator
Estimate the solar array and battery reserve that make your daily power budget realistic.
Recommended setup
Panels
450W
Battery bank
350Ah
Inverter
900W
Shareable result URL:
/tools/solar-calculator?usage=1800&sun=5&battery=lithium&autonomy=2
Based on your setup, consider:
Renogy 400W Premium Kit
A practical starting point if your result lands near an entry-level 12V solar setup.
Check productBattle Born 100Ah LiFePO4
One of the cleanest benchmark batteries to compare your capacity target against.
Check productVictron MultiPlus 3000
Useful as a comparison anchor when your result starts pointing toward a serious AC load.
Check productHow to use the result
Start by treating the calculator as a planning floor, not the ceiling. If your result suggests 600 watts of solar and 300 amp-hours of battery, that is the point where the system begins to feel realistic for the load you described. It is not the point where bad weather, shoulder-season shading, or future upgrades stop mattering.
Most RVers are happier when they add a little margin instead of building directly to the paper number. That margin buys flexibility: cloud cover, partial shade, longer workdays, and the inevitable extra devices that creep into an off-grid setup over time.
What to sanity-check next
Compare the inverter recommendation against your largest simultaneous AC load, then make sure the battery reserve matches the number of poor-solar days you want to ride through comfortably. The best solar system is the one that feels boring in use.