Will my electrification package fit my panel?

Before paying for a panel upgrade, check what the code calculation says. Tick the appliances you plan to switch, enter your house and current appliance nameplates, and we run the NEC existing-dwelling method (220.83, 2023 NEC) three ways: as listed, with 120 V models, and with the new 240 V loads under a load-management device. If you have a utility peak-demand figure, we also show the measured-demand method (220.87). Add-on values are typical, not from a specific product: use the nameplate of the model you will buy.

How this is worked out

NEC 220.83: first 8 kVA of the other loads at 100%, the rest at 40%; new heating or cooling at 100%. Volt-amps are divided by 240 V and rounded up.
Replaced appliances are removed from the list and the new nameplate is added. Anything you keep stays.
120 V models: a 120 V heat pump water heater or condensing dryer still counts at its nameplate. Portable induction burners ride on existing kitchen circuits.
Load management: where two or more new 240 V loads share a device that stops them running together (NEC 750.30), we count them at the largest single load. The inspector must accept the device and its setpoint.
NEC 220.87: measured peak demand x 125% plus the full new nameplate load. We do not subtract the old appliances, which is the safe side.
The verdict order is: fits as listed, fits with 120 V models, fits with load management, needs a service upgrade. A panel with free breaker spaces is a separate question from the load calculation: check both.