[Retric]

It depends on what your paying for fuel, propane is shockingly expensive at 3$/gallon right now + delivery fees but let’s use 3$ for 91,452 BTU which works out to 11.2c/kWh before you consider efficiency.

At an optimistic 40% efficiency for a stovetop vs 90% for an induction cooktop the breakeven is 25c/kWh which is well above average US electricity prices. Worse that 40% assumes properly sized cookware in contact with the burner, no pilot light, and ignores the cost of venting air outside.

As to total costs, at full blast a propane burner only costs around 1$/hour but some people do a lot of cooking.