In German, the numbers from 11 to 20 follow a logical pattern that links them to the base numbers 1 through 10. After 12, the numbers 13 to 19 are formed by attaching -zehn (similar to "-teen" in English) to the root of the base number, with slight modifications for 16 and 17. This system reflects the language's characteristic structure and makes it easier to learn higher numbers.
  • 11: elf
  • 12: zwölf
  • 13: dreizehn
  • 14: vierzehn
  • 15: fünfzehn
  • 16: sechzehn
  • 17: siebzehn
  • 18: achtzehn
  • 19: neunzehn
  • 20: zwanzig

Source Material

Author: ThoughtCo

Document: German Numbers 1-20

Date Published: 2024

11–20: Details and Usage

  • 11 (elf) and 12 (zwölf) are unique words, not based on the root numbers.
  • From 13 to 19, the numbers are formed by combining the root number + "zehn" (e.g., 13 = drei + zehn).
  • For 16 (sechzehn) and 17 (siebzehn), the roots are slightly modified (sechs, sieben).
  • 20 (zwanzig) is the start of a new pattern for counting beyond ten.
Example Sentences:
  • Ich bin zwölf Jahre alt. (I am twelve years old.)
  • Das Buch kostet sechzehn Euro. (The book costs sixteen euros.)

Source Material

Author: German Very Easy

Document: German Numbers 11-20

Date Published: 2023

Conclusion

German numbers from 11 to 20 reveal a fascinating blend of unique words and systematic construction, making them both memorable and a key to understanding higher numbers.
  • 11 and 12 are unique: elf, zwölf.
  • 13–19 combine the number root + "zehn," with some spelling tweaks.
  • 20 (zwanzig) starts a new pattern for counting above ten.