Denmark has its own plug standard, Type K, with a distinctive smile-shaped socket. The good news: modern Danish sockets are increasingly hybrid designs that also accept Schuko Type F plugs, making the country easier for European travelers than the unique plug shape suggests. For US travelers, an adapter is required regardless.
Quick answer by origin:
- From the US or Canada: Adapter required. Voltage check required.
- From the UK: Adapter required. Voltage match is fine.
- From the EU (Schengen): Modern hybrid sockets often accept Schuko; older sockets need Type K.
- From Australia or NZ: Adapter required. Voltage match is fine.
What plug does Denmark use?
Denmark uses Type K under DS 60884, the Danish national standard. The plug has:
- Two round pins for live and neutral, 19 mm apart (same spacing as Schuko)
- A triangular earth pin at the bottom centre
- The triangular earth pin gives the socket its "smile" appearance: two eye-like round slots above a curved mouth-like earth slot
Since 2008, Danish electrical regulations have required new sockets to accept both Type K and Type F Schuko plugs. The hybrid socket design has Type K's triangular earth slot plus additional contacts that accept Schuko's side earth clips.
In practice:
- New Danish hotels and apartments (post-2008): hybrid sockets that accept Type K, Schuko, and Europlugs
- Older Danish buildings: pure Type K sockets that don't accept Schuko reliably
- Greenland and Faroe Islands: same Type K standard with some local variations
Denmark's voltage and frequency
Denmark runs at 230 V, 50 Hz, harmonized with the rest of Europe. The grid is operated by Energinet and is among the most stable in Europe. The country has been a leader in wind generation; about 50% of Danish electricity comes from wind power.
For US and Canadian travelers, this is roughly double your 120 V home mains. The dual-voltage check matters.
For UK, EU, and Australian travelers, voltage matches.
Do I need a travel adapter for Denmark? By origin country
From the United States or Canada
Adapter required. US plugs don't fit Type K or Schuko sockets. Buy a US-to-Denmark adapter or a universal that explicitly includes Type K coverage.
Voltage check: every device needs 100-240 V on the brick. Single-voltage US appliances will burn out at Danish mains.
From the United Kingdom or Ireland
Adapter required, voltage match is fine. UK Type G is incompatible with both Type K and Schuko. UK-to-Europe adapters cost £3-8.
From the EU (Schengen area)
Depends on accommodation age:
- Modern Danish hotels and homes (post-2008): Schuko plugs fit hybrid sockets directly
- Older Danish buildings: pure Type K sockets reject Schuko; you need a Type K-specific adapter
For safety, pack a small Schuko-to-Type-K adapter if you'll stay in older accommodations or Airbnbs in heritage buildings.
From Australia or New Zealand
Adapter required, voltage match is fine. Type I doesn't fit Type K. AU-to-Europe adapters with Type K coverage work; many universals explicitly include Denmark.
Type K's place in the European plug landscape
Type K is one of three European plug standards that aren't pan-European compatible:
- Italian Type L: three round pins in a line, doesn't fit Schuko sockets
- Swiss Type J: three round pins in a Y, doesn't fit Schuko sockets
- Danish Type K: two round pins plus triangular earth, sometimes fits hybrid sockets
Of the three, Type K has the best Schuko cross-compatibility in modern Danish construction thanks to the 2008 regulation requiring hybrid sockets. Italian and Swiss sockets have less compatibility with Schuko.
Practical answers for common Danish travel situations
Will my MacBook charger work in Denmark? Yes. All Apple chargers are dual voltage. Add a Type K or Schuko adapter depending on your origin.
What about Copenhagen vs Aarhus vs Aalborg? Same Type K standard everywhere. No regional variation.
Are Danish hotels reliable for power? Yes, very. The grid is stable and modern. Even small bed-and-breakfasts in rural Jutland have modern hybrid Type K/F sockets.
Can I buy an adapter at Copenhagen (CPH) airport? Yes, at airport markup: DKK 80-150 ($12-23) for adapters that cost DKK 30-60 at any Netto, Bilka, or Danish electronics shop.
What about charging on the Øresund Bridge train to Sweden? Yes, both DSB (Danish State Railways) and Swedish SJ trains have outlets at most seats. The Øresund train between Copenhagen and Malmö is fully equipped.
Will my UK three-pin shaver charge in Denmark? Yes with a UK-to-Type K adapter. Voltage matches at 230 V.
What about Greenland and the Faroe Islands? Greenland uses Type K at 230 V. The Faroe Islands also use Type K. Both share Danish electrical standards as part of the Kingdom of Denmark.
Denmark on multi-country itineraries
A common pattern is Denmark combined with Sweden, Norway, or Germany. The plug compatibility:
- Denmark to Sweden: Type K plug fits Swedish Schuko? Only in modern hybrid Swedish sockets, which are uncommon. A Schuko plug fits modern Danish sockets but not older Type K.
- Denmark to Germany: Same as Sweden situation reversed.
- Denmark to Norway: Same as Sweden.
For Scandinavian multi-country trips, a Schuko adapter handles most modern accommodations but a Type K-specific adapter is a useful backup. A universal adapter that covers both Type K and Schuko is the cleanest solution.
Charging multiple devices at once
Danish outlets typically come in pairs per faceplate in modern hotels, singly in older accommodations. For travel charging:
- A GaN multi-port charger with a Type K or Schuko plug, charges 4 devices off one socket
- A Schuko-input travel power strip with 2-3 universal sockets (works in modern Danish hybrid sockets)
- A USB-C hub charger that plugs directly into Type K or hybrid Type K/F
Danish sockets deliver 13 A per outlet (3,000 W at 230 V), enough for any travel charging setup.
The bottom line
Denmark has a unique smile-faced Type K plug that's gradually being phased into compatibility with the rest of Europe through hybrid sockets. Modern Danish hotels and homes accept Schuko plugs alongside Type K; older buildings require Type K-specific adapters.
For European travelers, modern Danish accommodations usually accept your Schuko plugs directly. For US, UK, and AU travelers, one adapter with Type K coverage handles the entire country.