CALCULATORS

Turn product specifications into a plan.

Interactive tools for sizing backup power, comparing systems, and building realistic water and food reserves.

Compare battery stations, inverter generators, and dual-fuel generators against your real outage requirements.

Select household loads, account for motor surge, and get continuous and peak watt targets.

Estimate usable hours from watt-hours, electrical load, and conversion efficiency.

Estimate how long stored gasoline or propane can support a measured generator load.

Calculate household gallons, pet water, containers, current inventory, and treatment capacity.

Plan by household calories, no-cook needs, preparation water, and storage duration.