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Editorial Team
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Asked: 2026-06-06T08:42:31+00:00

I try to convert a number between 0 and 255 to hexadecimal format. If

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I try to convert a number between 0 and 255 to hexadecimal format. If I use sprintf("%X", 1) I get 1, but I need the output always to have width 2 (with leading 0s) instead of one. How can this be done?

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1 Answer

  1. Editorial Team

    Use %02X: 

    sprintf("%02X",1)    # ->  "01"
sprintf("%02X",10)   # ->  "0A"
sprintf("%02X",16)   # ->  "10"
sprintf("%02X",255)  # ->  "FF"
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