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Kilohour

Kilohour

Free runtime calculator for portable power stations

Oct 27, 2026 Other
device compatibility energy management portable power power calculation runtime estimator

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Kilohour

About

Kilohour is a free web tool built around a single question: how many hours will a portable power station keep your gear running? Pick one of 52 models from EcoFlow, Jackery, BLUETTI, Anker SOLIX, Goal Zero and DJI, add devices from the list or enter your own wattage, and set how long it needs to last. You get cautious, typical and optimistic runtimes plus a verdict on whether the station can start the load at all, checking both continuous output and startup surge. Specs come from the makers' own product pages and manuals, each linked to its source with a last-checked date, and missing numbers are left blank rather than guessed. Also included: a sizing tool, a solar recharge calculator, a two-station comparison and CPAP / home-outage planners. Free, no account.

Comments (3)

Kade Funk Kade Funk 3 days ago

finally a tool that answers my burning question about power stations. how does it handle different devices though?

Keyon Moen Keyon Moen 2 days ago

super handy tool for figuring out how long my gear will last with different power stations. are all 52 models listed?

Dante Prosacco Dante Prosacco 3 hours ago

the tool is limited to just a few brands, which makes it less useful for a wider audience.