Portable Power Station Calculator — Find Your Ideal Battery Size

Find Your Ideal Portable Power Station

Use our free appliance calculator to estimate the battery capacity and inverter power you need for camping, RV trips and home backup.

Free interactive buying tool

Find the right power station. In under 60 seconds.

No guesswork. Tell us what you want to power and we'll estimate the battery size and output you need.

✓ Choose appliances✓ Set running time✓ See your power match

1 What do you need to power?

Start with a popular setup or add your own appliances. You can change every wattage.

2 How long do you need power?

Hours are set for each appliance above. Choose how many days you need between full recharges.

Your personalised recommendation appears here

Choose your appliances above, then press the blue button. We'll show your estimated battery capacity, power output and relevant reviews.

Calculations are planning estimates using 85% usable AC energy and 20% continuous output headroom. Actual consumption varies; refrigerators cycle, appliances may have high startup surges, and solar input is not included. Check manufacturer ratings before buying. Some links may be affiliate links; see our disclosure.

Estimates are for planning only. Always verify manufacturer specifications and appliance startup loads.

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