Danish Numbers

Danish numbers are short and useful — but they include some of the most distinctive vocabulary in the language. The tens from 50 to 90 come from an old base-20 (vigesimal) system, and compound numbers are built unit-first (tooghalvtreds for 52). Once you've internalised those two patterns, the rest is mostly memorisation.

The pages below walk you through it step by step — start with counting to 10, then work up through the teens, tens, and compounds. Once you can read a Danish phone number out loud, you've got the system.

info

Why are Danish numbers infamous?

The 50–90 range is built around “scores” (groups of 20). Halvtreds (50) literally means “half-way to the third score” — 2½ × 20. Most Danes don't think about the etymology; they just memorise the words. We recommend you do the same: learn halvtreds, tres, halvfjerds, firs, halvfems as vocabulary and move on.

Learn to count

Start here. The pages below walk through the cardinal numbers in the order most learners find easiest — small numbers first, then the teens, then the deceptively tricky tens (50–90), and finally how to combine them. If you only deep-dive on one section, make it 20–100; that's where Danish numbers go from obvious to confusing.

Numbers in real life

Once the basic numbers feel familiar, these pages cover where you'll actually meet them. Ordinal numbers come up in dates and rankings; prices and money you'll hear at every till; dates and phone numbers each have their own quirks worth learning before you need them in conversation.

Word lists

Curated Danish vocabulary by topic — food, family, work, and more.

Grammar guides

Word order, noun gender, verb tenses, and the rules that hold Danish together.

Reading exercises

Short Danish texts with comprehension questions — practise numbers in real sentences.

Frequently asked questions

Why are Danish numbers so confusing?expand_more

The tens from 50 to 90 come from an old vigesimal (base-20) counting system. Words like halvtreds (50) and halvfjerds (70) literally mean "half-way to the third score" and "half-way to the fourth score". Most Danes don't think about the etymology — they just learn the words — and that's the best approach.

Do Danes really say 'two-and-fifty' for 52?expand_more

Yes — Danish compound numbers from 21 to 99 are unit-first, just like German. 52 is tooghalvtreds ("two and fifty"), 87 is syvogfirs ("seven and eighty"). It feels backwards if you're coming from English, but it's the same rule every time.

What's the easiest way to learn Danish numbers?expand_more

Work through them in order. Master 1–10 first (they're short and used constantly), then the teens, then the round tens. The tens are the hardest part — once those stick, compound numbers like 47 (syvogfyrre) come for free.

Do Danes use written numbers (47) or words (syvogfyrre) more?expand_more

Written digits, almost always. You'll see digits on price tags, schedules, signs, and forms. The Danish words for numbers come up most when you're listening — at the checkout, on the phone, or in everyday conversation.