I built a free calculator that tells you what size portable power station you need

I kept trying to buy a portable power station and drowning in specs — watt-hours vs. running watts vs. surge watts — and every brand's own "which one do I need?" calculator conveniently pointed me at their most expensive model. So I built the tool I would want to use for this purpose. WattSized (https://wattsized.com): you check off the appliances you want to run — fridge, CPAP, sump pump, laptop, whatever — and it does the real math (duty cycles, startup surges, inverter l