Power Station Calculators
Free tools for planning backup power, camping and RV setups. They work on your phone, and everything runs in your browser.
Runtime calculator
How long will your power station run a fridge, CPAP, sump pump or anything else? Checks surge too.
What size do I need?
List what you want to power and for how long. Get the models that can handle it, smallest first.
Solar charging calculator
Charging time from your panels, plus a wiring check for voltage and current limits.
Generator vs power station
What each costs over the years in price, gas or electricity and upkeep, and what each needs for a long outage.
Compare models
Put up to three power stations side by side, with runtimes for everyday appliances.
Reference
- Specs for all 48 power stations in our database
- Appliance wattage chart: running, starting and average watts
- How we calculate: formulas and assumptions