How we ranked these
Three criteria, in order, and all three come from what GE and Whirlpool publish rather than from what a cookware site thinks sounds good.
1. Base diameter against the burner circle — including the floor
This is the criterion almost nobody mentions and the one most likely to annoy you. An induction burner does not simply run hotter or cooler depending on the pan; it has to detect the pan first. GE states that “the induction burners require a minimum pan size in order for the element to turn on,” and that the pan must be “centered within the circular graphics marked on the glass cooking surface.” Whirlpool is blunter about the failure mode: “If the pan is too small, the surface cooking area does not sense the pan and will not activate.”
That is why the 8-inch classic is on this list with a narrow recommendation and the 5-inch mini is not. A small iron pan will usually work on a cooktop’s smallest zone and simply fail to light up a large one. The ceiling matters too, in a gentler way: GE says a larger pan can be used but “heat is generated only above the burner’s cooking circle. The further the pan extends beyond the cooking circle the less the burner will perform.” A 15-inch Lodge on a 7-inch coil heats a 7-inch disc in the middle of it and conducts the rest, slowly — which is exactly the unevenness people blame on the pan.
Whirlpool’s rule of thumb is that “the diameter of the pan’s base should be equal to the size of the surface cooking area,” and that “round cookware works best on induction surfaces.” Here is the honest gap: cast iron skillets slope inward, so a pan sold as 10.25 inches has a considerably smaller flat base — and no maker publishes that number. The closest published proxy is the flat cooking surface a few makers state for the inside floor: Lodge publishes 7.9 by 8.36 inches for its 8-inch Chef Collection pan, Lancaster about 10 inches on an 11.6-inch skillet, Le Creuset 8.25 inches on its 10.25-inch enameled skillet. Measure your own burner circles with a tape before you buy a pan at the edge of a zone; it takes thirty seconds and it is the only real answer.
2. A base that is fully, uniformly ferrous
Whirlpool’s test is the one everyone has heard: “Hold a magnet against the bottom of your cookware. If the magnet sticks firmly, the cookware is induction compatible.” Every pan on this page passes it trivially, and that is the whole structural argument for iron on induction. Clad stainless and aluminum pans get induction compatibility bolted on as a magnetic disc in the base, and Whirlpool warns that cookware with only a partial ferromagnetic bottom “may heat up at different levels or with lower temperatures.” GE spells out the consequence with an example: an 11-inch fry pan carrying only 7.25 inches of magnetic material behaves as the smaller pan.
A cast iron skillet has no disc, no cladding and no layers. It is one piece of ferrous metal from rim to rim, which means the field couples into the whole base and the pan heats as one thing. Enameled cast iron counts too — the enamel is a thin glass coat fused to an iron body, and the iron underneath is what the burner sees. Staub’s own FAQ states that its cast iron works on all hob types including induction, and Lodge publishes the same clearance on its enamel pots.
3. Weight, because you lift it onto glass rather than slide it
Induction cooktops are glass, and glass scratches. Whirlpool’s own ceramic-glass maintenance guidance is to use flat-bottomed cookware “for best heat conduction and energy efficiency” and, in its own words, “to avoid scratches, do not slide cookware or bakeware across the cooktop.” It also asks you to make sure the bottoms of pots are clean and dry first, because “residue and water can leave deposits when heated.” Lodge gives the same instruction for glass: lift the pan rather than sliding it.
Lifting is where published weight becomes a real spec rather than trivia. The spread across the pans here is wide — 3.2 lb for the 8-inch classic, 3.86 lb for the Blacklock, 5.36 lb for the 10.25-inch classic, 7.89 lb for the 12-inch, 12.38 lb for the 4.5-quart enamel pot full of nothing at all. We rank the registry on that axis properly in best lightweight cast iron skillets, and on induction it carries extra weight (so to speak) because a two-handed lift onto glass is a different act than dragging a pan across a gas grate.
The one real drawback, and the setting that fixes it
Cast iron on induction has a genuine failure mode, and it is the mirror image of the pan’s virtue. Induction delivers energy fast and directly into ferrous metal; cast iron stores enormous amounts of it and gives it back slowly. Put those together and you get a pan that races past the temperature you wanted and then refuses to come down when you turn the dial. Lodge addresses this on its own heat-source page: iron is ferrous, so cast iron suits induction, but it wants lower settings than other cooktops.
In practice that means treating the number on an induction panel as a rate of energy rather than a temperature. Lodge’s general guidance is to preheat for 3 to 5 minutes on medium-low and cook most things at medium-high; on induction, start lower than that and give the iron time rather than power. If you have ever smoked out a kitchen by putting a dry skillet on an induction boost setting, you have met the problem — and the cause is covered in why is my cast iron smoking.
The second thing nobody warns you about is noise. A heavy iron pan on a powerful coil can buzz or hum, and a loose lid will rattle. That is the field doing its job, it is not damage, and there is nothing to fix.
What we did not rank, and why
- The machined-smooth premium pans, with a caveat. Stargazer, Field and Lancaster all work on induction — Stargazer’s own FAQ says its cookware “can be used on any cooking surface: gas, electric coil, glass/ceramic, induction, grill, etc.” But Stargazer also publishes that its cookware “is designed with concave curvature across the bottom,” which leaves the iron room to deflect during preheating. GE asks that cookware “make full contact with the glass surface”; a deliberately concave base does not, by design. On induction that matters far less than on a radiant top, because the pan is the element and not the recipient — but we are not going to rank a pan first on a cooktop whose maker’s instruction it publicly does not meet. We compare them on their own merits in best smooth cast iron skillets.
- The 15-inch skillet and the 20-inch griddle. Both are superb pieces of iron and both are the wrong shape for a burner circle. GE is explicit that heat is generated only above the cooking circle; a 20 by 10.5-inch two-burner plate on induction heats two discs and conducts the rest. If you want flat-top cooking on induction, a single-burner round or square griddle sized to one zone is the honest answer — see our griddle roundup.
- The 5-inch mini skillet. It is below the detection threshold on most large zones. Lovely for an egg in the oven, unreliable as an induction pan.
- Camp dutch ovens. The three-legged camp pots do not sit flat on glass at all, which rules them out before magnetism is even a question. Their place is over coals.
- Anything with a riveted-on magnetic disc. Not cast iron, and the exact pattern Whirlpool and GE both warn about.
What this should cost
Almost nothing, which is the nicest thing about this answer. The top pick sits at the bottom of the market, the small and large classics alongside it, and the full three-pan induction kit costs less than one clad stainless skillet with an induction disc in the base. The enameled options are where money starts to matter, and our budget enamel roundup covers that ladder.
Live prices for every pick are in the table at the top of this page and refresh daily; we never write a price into a sentence. The upkeep is ordinary bare-iron upkeep — our seasoning guide and cleaning guide apply unchanged, with one addition: wipe the base of the pan before it goes down on the glass, every time.
