Hi, I am Kiru 👋 an indie hacker, a problem solver and vim-lover. I build projects to make the life of others and mine easier.

This page is intended to collect all my projects and some thoughts.

What is the max length of an SMS?

TIL 05.03.2017

  • max SMS length is 1120 bit
  • 7 bit per character used for the default alphabet, which means the maximum length is 160 characters ( 1120 / 7 )
  • 8 bit is used for data-messages ( e.g. images or sound messages )
  • 16 bit for the rest of the characters using Unicode encoding, meaning max 70 characters (Websms)
  • Note: German Umlaut ( ö, ü, ä ) uses 16bit per characters
  • Note: If one character needs to be encoded with 16bit then the whole message is encoded with 16bit

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