About needwatts

needwatts answers one question well: what size generator do you actually need? Most sizing advice online either guesses wattages or headlines a generator's peak watts as if they were continuous. We publish the arithmetic instead: sourced running and starting watts per appliance, summed the way electricians size a load, with the sources shown on every page.

The site earns through Amazon affiliate links — clearly labelled, and never affecting the math. See methodology for how figures are chosen. Contact: [email protected].