For some people, this may be a no-brainer. For me? I had to learn the hard way.
I was staying on a houseboat in Amsterdam and plugged in my curling iron. Not long after, the outlet started smoking. Luckily, I was standing right there. I yanked it out before my attempt to curl my hair turned into an entirely different kind of Amsterdam vacation story.
That experience taught me something I probably should have known before plugging things into European outlets:
An adapter and a converter are not the same thing.
Knowing which one you need matters.
FIRST, A LITTLE ABOUT VOLTAGE
Electricity in much of Europe runs at around 230 volts, while electricity in the United States runs at around 120 volts. That's a pretty significant difference.
The good news is that many of the electronics we travel with today are designed to handle both. The important part is knowing which ones are—and checking before you plug them in.
WHAT DOES AN ADAPTER DO? An adapter changes the plug, not the electricity.
European outlets are shaped differently from outlets in the United States, so your American plug usually won't fit. An adapter simply allows your plug to fit into the outlet. That's it. It does not change the voltage.
For many modern electronics—such as phone, laptop, and camera chargers—the power supply may already be designed to work across a range of voltages. Look at the tiny print on the charger or power supply. Look at the tiny print on the charger power supply. If you see something similar to INPUT: 100–240V, 50/60Hz, it's designed to accept voltage within that range, so you generally only need the correct plug adapter for your destination.
Don't assume, though. Check the label on your specific device or charger.
WHAT DOES A CONVERTER DO? A converter changes the voltage.
A voltage converter or transformer changes the voltage coming from the outlet so an appliance designed for a different voltage can operate appropriately. This becomes especially important with certain appliances that aren't dual voltage. That's where my curling iron comes in.
Hair dryers, curling irons, straighteners, electric shavers, and similar appliances shouldn't automatically be treated the same way as your phone charger. Some are dual voltage and some aren't. Check the voltage rating on the actual appliance.
If it isn't designed for the voltage where you're traveling, don't just stick an adapter on the end and hope for the best. You may need an appropriate voltage converter—or it may simply be better to leave that appliance at home. As for me? I solved the curling iron problem by buying one made for European voltage. I'm a quick learner!
Also check the wattage limits and manufacturer's instructions for any converter you're considering. Not every converter is appropriate for every appliance.
MY VERY SIMPLE RULE NOW
Before an electrical item goes into my suitcase, I ask two questions:
1. Will the plug fit where I'm going?
If not, I need an adapter.
2. Can the device handle the voltage where I'm going?
If not, I may need a converter or transformer—or a different appliance.
I actually read the little voltage label now. Amazing what a smoking outlet will do for your attention to detail.
LEARN FROM MY MISTAKE
Travel adapters are small, inexpensive, and easy to toss into your bag. Don't assume that because your American appliance fits into an adapter, it's suddenly safe to plug into an outlet anywhere in the world.
Adapter = changes the plug.
Converter = changes the voltage.
Know which one you need. Check whether your device is dual voltage. If you're unsure, check the manufacturer's instructions before plugging it in.
Because keeping your houseboat in Amsterdam from catching fire is a travel tip I feel unusually qualified to give.