You likely have to replace none of your cookware. Most common cookware works with induction. Even copper/aluminum core has no problem, and most stainless steel

You likely have to replace none of your cookware. Most common cookware works with induction. Even copper/aluminum core has no problem, and most stainless steel. The stuff that doesn't work is quite niche (pure aluminum/pure copper, and some high-end stainless steel).