Can anyone tell me if I need an adapter/converter to use a flat iron in Japan?
I have read conflicting things on the internet.

Thanks in advance,
Denise

Unless you have a dual-voltage travel iron, the voltage will be different. The iron will still work, but not as efficiently.

As for the plug, if your iron has a US 2-prong plug, you'll be fine. A US 3-prong plug will need an adapter. No need for anything fancy; your local hardware store has an adapter with a 3-prong plug intake and 2-prong outlet.

Cell phones, computers, cameras, these items usually are dual voltage. Hair products... not so much. I ruined a curling iron that I tried using in Italy once. I purchased an inexpensive iron in Europe that I can use there and also in Thailand.

Thank you for your feedback!

Japan uses 100V, which is slightly lower and close to the US. Unlike rest of Asia or most of the world at 220-240V.

You checked and your lodging doesn't have an iron and ironing board available for guests? Or you are moving to Japan? Or you are picky about what iron you use?

MRWUNRFL....you jest! She is ironing her hair not her shirt. I bet she would use the hotel iron on her shirt.

Yes, I jest!

gee, I must be getting really old - I didn't realize it was for the hair....

I remember one of my girlfriends using a regular iron on her hair - probably before the flat iron was invented....;-)