Pronouncing Numbers, Dates, and Spelling Aloud | German Grammar

Knowing the German numbers in writing is one thing; surviving them spoken at full speed on the phone is another. German has a handful of pronunciation conventions that have no English equivalent and that cause constant errors: it says the units before the tens (so 21 is "one-and-twenty"), it swaps zwei for zwo to keep it from sounding like drei, and it spells words aloud with a fixed spelling alphabet. This page is a practical guide to hearing and saying numbers, prices, dates, and years, and to spelling your name down a crackly phone line — the moments where comprehension actually breaks down.

The big reversal: units before tens

This is the single most important fact on the page. In two-digit numbers, German names the units digit first and the tens digit second, joined by und ("and"). So 21 is einundzwanzig — literally "one-and-twenty". This is the order of the old English nursery rhyme "four and twenty blackbirds", but in German it is the only order, used everywhere, all the time.

einundzwanzig

21 — literally 'one-and-twenty'; units (1) before tens (20)

dreiundvierzig

43 — 'three-and-forty'; you hear the 3 before the 40

sechsundsiebzig

76 — 'six-and-seventy'; the 6 comes first in speech

The reason this is a pronunciation problem and not just a writing problem is what it does to listening. When a German says a phone number or a price, you hear the small digit first and have to hold it while the tens arrive. English brains, primed to take digits left-to-right, often write 76 down as 67. There is no shortcut: you must retrain your ear to wait for the und and then swap the two digits mentally. Drill this with phone numbers until the reversal becomes automatic.

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For every two-digit number, the spoken order is units-und-tens. When you hear "...und...", flip the two digits you heard: vierundachtzig = four-and-eighty = 84, not 48. This single habit prevents most number errors.

In larger numbers the reversal applies only to the final two digits; hundreds and thousands come in the expected order. So 364 is dreihundertvierundsechzig — "three-hundred-four-and-sixty": the hundreds first, then the units-before-tens swap at the end.

dreihundertvierundsechzig

364 — 'three-hundred-four-and-sixty'; only the last two digits reverse

zwei vs zwo: the telephone number

Zwei (2) and drei (3) sound dangerously alike over a phone, in noise, or shouted across a room — both are short, both start with a voiced-then-r-ish cluster to a non-native ear. To remove the ambiguity, Germans routinely replace zwei with zwo when clarity matters: on the phone, reading out account numbers, in the military, at train stations. Zwo is not slang or wrong — it is a recognised clarifying variant whose whole purpose is to be unmistakable for drei.

zwei

2 — the standard word, used in normal speech

zwo

2 — the telephone/clarity variant of zwei, so it can't be heard as drei (3)

meine Nummer ist null eins sieben zwo drei

'my number is 0 1 7 2 3' — zwo keeps the 2 and the 3 distinct

A related clarity habit: sieben (7) is sometimes clipped in fast speech so it sounds almost like "sim", and careful speakers will articulate it fully (sie-ben) when reading numbers aloud. You should at least recognise the clipped version when you hear it.

Phone numbers: read in pairs (or singly)

There is no single fixed convention, but the most common way to read a German phone number aloud is to group the digits into pairs and pronounce each pair as a two-digit number — which means the units-before-tens reversal strikes again, twice per pair. Many people instead read each digit singly to avoid exactly this confusion, especially with strangers.

dreißig zweiundvierzig achtzehn

'30 42 18' — read in pairs; note 42 = zweiundvierzig ('two-and-forty'), the units-first swap

null eins fünf zwo

'0 1 5 2' — the same kind of number read digit by digit, the safest option with strangers

Prices and decimals: the comma is the point

German uses a comma (Komma) as the decimal separator where English uses a point, and a point (or a thin space) where English uses a thousands comma. So 3,5 means three-point-five, and you read the comma aloud as Komma.

drei Komma fünf

3,5 = 'three point five'; German says Komma where English says 'point'

For prices, the everyday spoken pattern joins the euros and cents with no word for the decimal — much like English "three fifty". The cents are often just appended.

drei Euro fünfzig

3,50 € = 'three euros fifty'; the cents follow directly

neunzehn Euro neunundneunzig

19,99 € = 'nineteen euros ninety-nine'; note the units-before-tens 99

Years: hundreds, not thousands (mostly)

For years up to 1999, German reads the date as hundreds, exactly like English "nineteen-eighty-four": neunzehnhundert... ("nineteen hundred...") followed by the last two digits in their units-before-tens order. From 2000 on, the convention shifted to zweitausend... ("two thousand..."), again like modern English "two thousand twenty-four".

neunzehnhundertvierundachtzig

1984 — 'nineteen-hundred-four-and-eighty'; pre-2000 years read as hundreds

zweitausendvierundzwanzig

2024 — 'two-thousand-four-and-twenty'; (the und after tausend is optional)

The und after tausend is optional: both zweitausendvierundzwanzig and zweitausend und vierundzwanzig are heard, with the shorter form more common.

Dates: ordinal + -ten

Spoken dates use ordinal numbers (first, second, third...), and in the most common dative pattern with am ("on the"), the ordinal takes the ending -ten. The first three are irregular and must be memorised: erste (1st), zweite (2nd), dritte (3rd).

am ersten Mai

'on the first of May' (1. Mai) — ordinal erst- + -en after am

am dritten Oktober

'on the third of October' (3. Oktober) — note dritt-, the irregular 3rd

der zwanzigste Juli

'the twentieth of July' (20. Juli) — regular ordinal -ste

In writing, the ordinal is shown with a period after the digit: 1. Mai, 3. Oktober. The period is doing the job of English "st/nd/rd/th" — it marks the number as an ordinal.

Spelling aloud: the German spelling alphabet

When you spell a name down the phone, German does not say "B as in boy" ad hoc — it uses a fixed spelling alphabet (Buchstabiertafel) of agreed names, just as English uses the NATO alphabet (Alpha, Bravo...). The traditional German list uses first names and a few common words: Anton, Berta, Cäsar, Dora, Emil, Friedrich, Gustav, Heinrich, and so on. You will also hear the international NATO alphabet, especially in aviation and tech.

Anton, Berta, Cäsar, Dora, Emil

A, B, C, D, E in the traditional German spelling alphabet (note the ä in Cäsar)

B wie Berta, A wie Anton, C wie Cäsar, H wie Heinrich

'B as in Berta...' — spelling out BACH using wie ('as in')

The pattern for spelling out a single letter is X wie [Name] — literally "X as in [Name]". Note that the names themselves must be pronounced correctly, with their diacritics: Cäsar has an ä, and Ärger (sometimes used for Ä) and Übermut (for Ü) cover the umlauts. The letter ß is read aloud as Eszett or scharfes S ("sharp s"); you cannot start a word with it, so it rarely needs spelling at the front.

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To spell aloud, say "[letter] wie [name]" — e.g. "M wie Martha". If you don't know the official name, any common word works in practice ("M wie München"). Germans will understand and may gently correct you to the standard name.

Common Mistakes

❌ einundzwanzig → '12'

Incorrect — reading the digits left-to-right; the und means units come FIRST

✅ einundzwanzig = 21

Correct — 'one-and-twenty'; flip the digits when you hear und

❌ vierundachtzig = 48

Incorrect — units-before-tens reversed wrongly; 4-and-80, not 80-and-4 misread

✅ vierundachtzig = 84

Correct — four-and-eighty = 84

❌ drei Punkt fünf

Incorrect — German does not say 'point' for decimals

✅ drei Komma fünf = 3,5

Correct — the decimal separator is a comma, read as Komma

❌ am erste Mai

Incorrect — missing the -n ending on the ordinal after am

✅ am ersten Mai

Correct — 'on the first of May'; am takes the -ten/-n ordinal ending

❌ B wie Boy

Incorrect — inventing an ad-hoc word; German uses a fixed list

✅ B wie Berta

Correct — Berta is the standard German spelling-alphabet name for B

Key Takeaways

Spoken two-digit numbers go units-und-tens: when you hear und, swap the two digits (sechsundsiebzig = 76). Only the last two digits of a larger number reverse.
Say zwo for 2 on the phone or in noise so it isn't confused with drei (3).
The decimal separator is a comma, read aloud as Komma (drei Komma fünf = 3,5); prices append the cents (drei Euro fünfzig).
Years before 2000 read as hundreds (neunzehnhundertvierundachtzig); from 2000 as zweitausend...
Dates use ordinals: am ersten/dritten..., written with a period after the digit (Mai
).
Spell words aloud with the fixed alphabet — Anton, Berta, Cäsar... — using the frame X wie [Name].

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