Step-up transformer or a new 110V appliance?
If you already brought a 230V mixer grinder, a step-up transformer can run it. Whether that's worth it depends on its wattage and how often you cook with it.
How we size it
Motors pull two to four times their rated power for a moment when they start. We size a transformer at three times the motor's watts and round up to the next common size. A 750W mixer grinder needs a 3,000W transformer; a 550W one needs 2,000W.
Heating appliances don't have that start-up surge, so 1.25 times their wattage is enough. But a standard US outlet on a 15-amp circuit should carry no more than about 1,440W continuously, so a 2,000W Indian induction cooktop or kettle is a poor fit no matter what transformer you use.
What a transformer can't do
It changes voltage, not frequency. US power stays at 60Hz. That's mostly fine for mixer grinders, which use universal motors, but not for wet grinders, whose induction motors run 20% faster on 60Hz.
Transformers and adapters
| What | Good for | Note | Buy |
|---|---|---|---|
| 3,000W step-up transformer | Running a 750W Indian mixer grinder you already own | Motors pull 2–4 times their rated watts at start-up, so a 750W mixer needs about 2,250W of headroom. | Search on Amazon |
| 2,000W step-up transformer | A 550–650W Indian mixer grinder you already own | Check the transformer has a grounded outlet and a circuit breaker. | Search on Amazon |
| India-to-US plug adapter | Chargers and laptops labeled 100–240V | An adapter changes the plug shape only. It does not change voltage. | Search on Amazon |
Look for a grounded outlet, a circuit breaker or fuse, and a continuous rating, not just a peak one. Or skip the extra box on the counter and compare 110V mixer grinders.
General guidance, not electrical advice.