Category
Power & Electrical
Working RV electrical calculators for batteries, solar, generators, and power conversion. Built to be fast, clear, and mobile-friendly.
RV Battery Sizing Calculator
Size your battery bank in amp-hours for 12V, 24V, and 48V systems.
Solar Panel Sizing Tool
Estimate how many watts of solar you need based on daily usage.
Generator Size Matcher
Match simultaneous appliance loads to an appropriate generator size.
Power Conversion Calculator
Convert watts and amps and estimate voltage drop over wire distance.