Electrical Outlets in Denmark

The Rick Steves Euro adaptor works. Two round pins 19 mm center to center. Difference is the grounding pin or lack of grounding pin.

Yes, type C are comparible to use in Denmark. The only difference is that Type K plug has a grounding pin, but you can fit a type C plug in a Type K outlet.

You can buy them at Wal Mart in the travel dept. Very inexpensive and it worked great.

In Denmark right now, type C works just fine.

My husband and I were in Denmark on May 15. I bought the Rick Steves adaptor x 2 for us to use. Then on this forum someone recommended the Ceptics 3 in 1 adaptor because it provides 2 USB ports and one place for a plug. My husband used the Rick Steves adapters and I used the Ceptics 3 in 1 Type C adaptor and loved it. I plugged in my iPhone, iPad mini 4 in the USB ports and my Apple Watch in the outlet. That way with limited outlets I was good to go with power.
Sonja

Just to make sure since we have never traveled to this part of Europe, it is the two prong that we would use in Italy, France ect?

The standard 2 prong Euro plug adapter, like the one sold in the RS store here online for $1, works in all of the European countries I have stayed at for low amperage applications like charging your cell phone. Those countries are:

France
Germany
Switzerland
Italy
Austria
Czech Republic
Belgium
Netherlands
Sweden
Norway
Denmark

and probably all the others too.

The UK adaptor, also $1 in the RS store, works in the UK and Ireland for similar low power options.

The Type C (Euro) plug is a close fit to the Swiss Type J socket. The Type C pins are the same spacing as the Swiss but the round pins tend to be slightly larger than the Swiss 4.0 mm sockets. We have pushed the Type C adaptor into the Swiss plugs, but as said, it's a tight fit. And of course, if you need a ground pin, the Swiss sockets are unique to Switzerland. Given the Swiss tourist trade, hotels (at least the ones we visited) offer loaner adapters (Type C and German Type F plug to Type J socket).