Use transparent, editable assumptions instead of guessing from a product label. Every result is an estimate and shows the inputs behind it.
Independent research
Source-backed specifications
Transparent assumptions
Updated for system fit
Planning calculators
Battery Runtime Calculator
Estimate how long a battery can support a steady load.
Battery Capacity Calculator
Estimate required amp-hours from daily energy use.
12V Wire Size Calculator
Estimate a conductor baseline using current, length and voltage drop.
RV Solar Calculator
Estimate array wattage and a matching storage baseline.
Planning aid only. Confirm final designs against current manufacturer instructions and applicable electrical standards, and use a qualified installer where required.