What Power devices Do I need for Travel in Europe?

Look at the fine print on your charging adapters. If it says something like "100-240V", then
it is a dual voltage adapter and you won't need a stepdown, just a plug adapter for the
countrie(s) you are going to. I would guess that all of your devices are dual voltage, and
it may depend on how old your chargers are.

If you have multiple chargers and the laptop one is the traditional "brick", I would say you
should consider getting a universal travel adapter that supports dual voltage, USB-A and
USB-C and supports the GaN fast charging protocol - you will save space and weight by
only taking one charger, and you can charge multiple devices at the same time if you have
the proper cables and/or plug converters.

Edit - your laptop needs to be new enough to have a USB-C port that supports charging
(all of that is relevant, some USB-C only supports data xfer) for the single charger solution
to be viable). Or, if there are enough USB-A outlets on your laptop, you can charge the
laptop via the wall plug and charge everything else through the laptop.

To charge the laptop, the travel adapter needs to be ~60W or above. You may see many
cheaper adapters, but they support charging phones and tablets, not laptops.

There are many, many options and lots of websites that will give you reviews/recommendations.
Just search on "universal travel adapter" or something like that.

In all my years the only low voltage charger that I ever encountered was one made by Nintendo. "Don’t argue with me daughter, I know what I am talking about .... just plug it in and stay out of my hair" Sizzle, Sizzle, Fry, Fry ..... fortunately, I found a European one at a shop in Budapest to replace it.

I wouldn't write off the voltage flexibility of the old laptop power adapter. Check before spending money.

I use an antique Dell laptop, this one born in 2017. I just had a look at the brick and in teeny tiny print I see that it is 100-240v 50/60 Hz so I could travel all over the world with nary a concern other than the shape of the plug.

Yours may be too. Have a look, magnifying glass or close up photo helps. Your iPhone is newer than mine and everything is highly likely to work too. Just need plug adapters. If you have anything like modern Apple chargers they will be fine. Read the label.

I would recommend taking a Universal multi-port charger with European plugs - mine has three USB-A ports and three US-C ports. It is not a charging issue, it is a "How many convenient outlets do I have?" issue. Have fun.

This should work for all of your devices...

Epicka Universal Travel Adapter

You don't need a step down converter and you don't need to bring all of your chargers. Just this and charging cables.

I want to point out that you cannot count on finding an outlet near the bed; sometimes there's not even one near the desk. Taking a long cable isn't a bad plan if you anticipate wanting to use your devices while they are charging at the end of the day.

bkirkman75,
I have enjoyed my Epica European travel plug for about 3 yrs now with no issues and have also found the plug locations in some lodgings a bit inconvenient. Sometimes I unplug the lamp to use my adapter. I may have to bring longer charging cords. I use a backpack in my travels, so weight is important.
I am currently admiring this "meta-ant" european travel plug adapter with a 3' extension cord (4' and 5' options also available) on sale ($17) on Amazon. Several of these plugs are on sale with black Friday deals.
Also, the TESSAN Universal Travel Adapter is considered an excellent choice with a 65W power output and the price range ($38). I doubt the prices on Amazon will drop again but you can always create a price alert that let's you know when it does.
I hope you have a wonderful trip!
LAH

Check your laptop and the headphones, but given what you listed, I doubt you need a power converter. If not, great since that saves weight and space. Many - NOT all - hotels will have USB outlets, but perhaps not enough. And if plug adapters are all you need, that’s easy to pack. LATE NOTE. The iPhone and Apple Watch should run on anything from 110 - 240. See https://discussions.apple.com/thread/7276506?sortBy=rank

We take a converter, but it’s for the waterpick and electric toothbrushes. Not that big or heavy - we still manage to meet carry-on only requirements for 30-day trips.

You will want at least two outlet adapters for the number of items you have, with a block that has two USB outlets.

Be mindful that different countries have outlets that look the same, but are so subtly different. Some countries, Italy comes to mind, use multiple types: C, E, F and a fourth type, type L. (In Italy, we ran into the third type on night #26 of our 30 day trip and the hotel had no adapter for us; we ran into the same issue two weeks earlier, but that hotel did have an adapter to loan us. )

See
https://www.ricksteves.com/travel-tips/phones-tech/electric-adapters-converters

Better yet, see https://www.worldstandards.eu/electricity/plugs-and-sockets/

Look on Amazon and you will find lotsa options for plug adapters and converters. If you have a travel store or travel bookstore near you, go there and support it, rather than Amazon.

If it says something like "100-240V", then it is a dual voltage adapter

No, Shoeflyer, that is a multi-voltage adapter.

Dual voltage generally applies to the device itself, like a hair dryer. It runs on two different voltages, one normally twice the other (or one half the other, depending on your perspective), like 115 and 230 VAC. It has a switch to change the input voltage by putting the loads in series (230V) or parallel (115V).

A multi-voltage device runs on a wide range of voltages and uses a transistor (I think it's called a triac) to limit the output voltage to 115VAC for line voltage devices or 5 VDC for charging electronic devices (USB). It can accept input voltages from 100V (Japan) to 115V (US) to 230V (Europe) to 240V (Australia) and probably more.

I believe that dual voltage adapters can work at 1800 watts, whereas multi-voltage adapters are generally limited to 40W.

A few comments to add to the other replies.....

No, you don't need a "step down converter". As others have mentioned, your existing chargers will most likely work just fine on the European 230 volt (nominal) / 50 Hz. electrical system. You will however need Plug Adapters specific to the countries you'll be visiting (I'd suggest taking more than one as they're easily misplaced). The Plug Adapters for the U.K., Switzerland and other countries in Europe are all different.

A few thoughts.....

• You didn't say what type of laptop you'd be travelling with, or whether this is new or a few years old. If it's an Apple product and fairly new, the charger will be designed for multi-voltage operation. Check the nameplate data which will likely be on the side of the charging cube, and very hard to read - use the magnifier on your phone. My MacBook charger is designed to deliver a charge voltage of 5 VDC to 20 VDC (it automatically selects the voltage according the the device it's connected to). I could manage just fine with only my laptop charger, but always like to have at least one backup so I pack a few.
• Also pack your iPhone charger as that can be used for the phone, headphones and watch. You'll need to have cables to adapt whatever type of plug is on the charging cubes to the devices they'll be connected to.
• I normally pack my chargers and cables in different locations, with some in my carry-on and some in my checked luggage. That way if one of the bags is "misplaced", I've always got a backup.

Thank you all for your informative replies! I did find out that my Apple iPad, Watch, and iPhone adapters are multi voltage and the
laptop adapter has multi voltage input ratings on it. I did purchase the Tessan Voltage converter so I have a cord for placement flexibility and it has 3 USB A and a USB C plug along with the plug for my laptop adapter. Feeling much better about keeping things charged in Europe.

You bought a travel plug adaptor not a "converter" which is an important distinction to remember.