HP 11c

The HP 11c is a programmable calculator with an extensive set of built-in scientific and engineering functions.

Non-Programmable Features:

  • Hyperbolic and inverse hyperbolic trig functions.
  • Probability (combinations and permutations).
  • Factorial, % change, and absolute value.

Programming Features:

The HP 11c provided label addressing (0-9 and A-E), subroutines (nestable to 4 deep). 8 conditional tests, increment/decrement loops, and 2 flags. For program editing, the calculator featured implied insert (instructions entered didn’t overwrite the current instruction) and deletion via the backspace key.

HP11C

Introduced in 1981. Discontinued in 1989.

Current Stock Status: Out of Stock

Replacement Model: HP 33s

Updated On: 13.09.15


  1. On 22-Oct-2016, Anonymous wrote: 
    What are the batteries for this HP 11C ?
    Your reply to Anonymous

  2. On 12-Sep-2014, Dick wrote: 
    I must have done something stupid and now my calculator is displaying in scientific notation instead of standard notation. How do I get back to standard notation?" thanks in advance for any help
    Your reply to Dick
    • On 10-Jan-2015, Anonymous replied: 
      You can download an Owners Handbook here: h10032.www1.hp.com/ctg/Manual/c00503576.pdf Section 4 - Display Control, starting on page 67, will answer your question.
      Your reply to Anonymous

  3. On 22-Feb-2013, Kelly wrote: 
    I have 11C stuck in 0,00 user and need to get it back to decimal 0.00 mode - please help
    Your reply to Kelly
    • On 24-Sep-2013, Anonymous replied: 
      to set to 0.00 (with dot instead of comma 0,00) turn it on while keeping "." key pressed... the same again to get back to ","
      Your reply to Anonymous

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