GeneratorFit
Reinis Tihovskis, founder of GeneratorFit

Reinis Tihovskis

Founder

I thought buying a generator would be straightforward. I made a list of a few appliances, compared several product pages, looked at the biggest watt number I could find, and ordered the model that seemed right. The problem only became clear when I tried to use it.

The generator could handle some small devices, but when the equipment I actually cared about started running, the load was too much. The startup demand was higher than I expected, the runtime did not match what I had imagined, and the product-page specifications suddenly felt much less simple than they had before the purchase.

By then, the generator had already been used. Returning it was no longer a clean or easy option. I had spent money on the wrong unit, lost time dealing with the problem, and still needed to buy a replacement.

That experience also taught me the opposite lesson: simply buying the largest generator is not always the smart solution either. A system that is far larger than necessary can cost more, use more fuel, be heavier, create more noise, and be harder to store or move. The real goal is not to buy the smallest or the biggest generator. It is to buy the right one for the devices, startup loads, runtime, charging options, and conditions that actually matter to you.

I created this free tool to make that decision easier. Instead of forcing you to decode every technical specification on your own, it asks a few simple questions, calculates the important power requirements, and sends you a personalized plan with suitable options to consider.

Personal experience vs. the actual calculations

This story explains why the tool exists — it isn't a substitute for professional electrical advice, and it isn't the basis for the math itself. For exactly how the numbers are calculated (formulas, assumptions, and their limitations), see our methodology page.

This calculator is free to use. Some of the products we may point you toward pay us a commission if you buy through our link — technical fit is always evaluated first, regardless of commission. Read the full affiliate disclosure.