How to Call Denmark from the US — Country Code +45
Denmark's country code is 45 (also written as +45 or 0045). To call Denmark from the United States, dial 011 + 45 + area code + local number from a US landline, or +45 + area code + local number from a mobile phone. Drop the leading 0 from the local number. Kinvo connects any Denmark number from your browser at $0.09/min — no app, no subscription. For the dialing code itself and number-format reference, see the Denmark country code page.
Denmark has no area codes — every Danish phone number is a flat 8 digits with no city prefix to learn. To call Denmark from abroad, dial +45 followed directly by the 8-digit number. Mobiles and landlines share the same numbering pool, distinguished only by the carrier issuing the number, so the same dialing rule applies for both.
Dial Denmark from the US
011 is the US international exit code. 45 is Denmark's country code. On a mobile phone, replace 011 with + (hold the 0 key).
Dialing Quick Reference
How to Dial Denmark From the US — Step by Step
Dial 011 + 45 + area code + local number
From a US landline or carrier cell phone, dial 011 45 + local number. On a mobile phone you can replace 011 with +, giving +45 + local number. If the local Denmark number starts with a leading 0, drop that 0 when dialing internationally.
Sign up for Kinvo
Create an account at kinvophone.com. Setup takes under a minute — no install required.
Add credits (from $5)
With $5 in credits, you can talk for approximately 55 minutes to Denmark. Credits never expire.
Dial and call
Open the Kinvo dialer, type +45 followed by the local number, and click Call. Allow microphone access when prompted. Your call connects in under 3 seconds with HD audio quality.
What it costs
Calls to Denmark with Kinvo start at $0.09/min plus a one-time $0.05 connection fee per answered call. No subscription, no minimums.
See the full rate breakdown for DenmarkWhy Americans Call Denmark
There are ~30,000 Danish-born US residents — most concentrated in California, New York, Illinois, and Wisconsin.
Family & diaspora
Danish expats and Danish-American families call Copenhagen and Aarhus for family check-ins, especially during Christmas (Danish julefrokost season) and midsummer (Sankt Hans aften).
Business
US-Denmark business calling is concentrated in pharma (Novo Nordisk dominates), shipping (Maersk), wind energy (Ørsted), gaming (Unity, IO Interactive), and Lego corporate.
Travel
Travelers call ahead for Copenhagen hotels, Tivoli ticket questions, Legoland Billund family bookings, and Bornholm island ferries.
Good to know: Danes answer with their full name. They prize punctuality and conciseness — keep calls focused. Hygge culture means evenings are family time; avoid post-5 PM Copenhagen calls for non-urgent matters.
Best time to call: 3 AM–10 AM US Eastern = 9 AM–4 PM in Copenhagen (Denmark is UTC+1 / UTC+2 with DST).
How to Call Denmark From iPhone, Android, or a Landline
From an iPhone
Open the Phone app, press and hold 0 until a + appears, then type 45 followed by the local Denmark number. Or use Kinvo in Safari — no dialer permissions needed.
From Android
Open your Phone app, long-press 0 to get +, then dial +45 + the number. In Chrome, open kinvophone.com and call directly without touching your carrier plan.
From a US Landline
Landlines don't have a + key, so use the full exit code: 011 45 then the local number. Check with your phone provider that international calling is enabled to avoid blocked calls.
How to Call Denmark For Free
If the person you're calling in Denmark has a smartphone with internet access, the cheapest way to call them is free: use WhatsApp, FaceTime, Telegram, Signal, or Google Meet. Both sides need the same app, and calls travel over the internet rather than the phone network — no per-minute fees, no country code needed.
For calling any regular Denmark landline or mobile number — the kind that requires dialing +45 — there is no truly free option, because someone has to pay the termination fee to connect the call. Kinvo is the lowest-cost option for dialing Denmark phone numbers, starting at $0.09/min with no subscription, compared to $1–$3/min at most US carrier rates.
Denmark Calling Tips
Danish numbers are 8 digits with no area codes. Dial +45 followed by the 8-digit number. Mobile numbers start with 2, 3, 4, 5, or 7. Landline numbers start with other digits. Danish is the official language, but English is widely spoken. Business hours are 8 AM to 4 PM CET.
Why Calls to Denmark Sometimes Fail (and How to Fix Them)
When a call to Denmark doesn't go through, the cause is almost always one of four issues — not the network. The most common is forgetting to drop the leading 0 from the local number after entering +45. Domestic Denmark numbers are written with that 0 at the start; that 0 is the trunk prefix and has no role in international dialing. Dial +45 XX directly, with no 0 in between.
The second is using the wrong exit code from the US. The North American Numbering Plan uses 011 — not 00, which is the international exit code most European countries use, and not the + sign on a landline (which has no + key). From a US mobile, holding the 0 key produces +; that's functionally identical to dialing 011 and works on any GSM or CDMA network worldwide. The third is dialing while your US carrier's international calling is disabled — some pre-paid plans block outbound international calls by default, and you need to call your carrier to enable it (often free, sometimes a small monthly add-on). The fourth is mistaking a +45 number for a fixed-line when it's a mobile or vice versa — the rate difference can be 2-5x, so confirm the number type before long calls.
Denmark's domestic time zone matters for whether anyone picks up. Most Denmark households answer between roughly 8 AM and 9 PM local time; for US callers, 3 am–10 am us eastern = 9 am–4 pm in copenhagen (denmark is utc+1 / utc+2 with dst) tends to be the best window.Government offices, banks, and most businesses observe local public holidays and may close early on the day before a major holiday — calls placed during those windows will go to voicemail or unanswered ring regardless of dialing format.
On cost: a 30-minute call to Denmark via direct-dial from AT&T, Verizon, or T-Mobile costs $30–$90 depending on whether you have an international add-on. The same call through Kinvo costs $2.75 with no monthly fee. WiFi calling on your phone routes the call through your carrier and bills at carrier rates — it does not save you money on international calls (see WiFi calling vs VoIP).
Frequently Asked Questions
How do I dial Denmark from the US?
From a US mobile phone, dial +45 followed by the local Denmark number (long-press the 0 key to get the + sign). From a US landline, dial 011 45 and then the number. Drop any leading 0 from the local number.
Is +1 the same as 011?
No. +1 is the country code for the United States and Canada. 011 is the US international exit code used before dialing any foreign country code. To call Denmark from the US, you use 011 + 45, not +1.
How do I call Denmark from an iPhone?
Open the Phone app, press and hold the 0 key until a + appears, then dial +45 followed by the local Denmark number. Or open kinvophone.com in Safari and call directly from the browser at $0.09/min.
Do I need to drop the leading 0 when dialing Denmark?
Yes — when calling from outside Denmark, drop any leading 0 from the local number after entering the country code. The leading 0 is the domestic trunk prefix and is only used for in-country calls.
How can I call Denmark for free?
If the recipient has a smartphone with internet, use WhatsApp, FaceTime, Telegram, or Signal — free over data. For calling any regular Denmark phone number, Kinvo is the cheapest option from $0.09/min.
Can I dial Denmark from my browser without an app?
Yes. Kinvo works entirely in Chrome, Firefox, Safari, or Edge using WebRTC. No download, no SIM swap, no carrier add-on needed — just sign up and dial +45 + the local number.
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