EXCEL: multiply a number by hours

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cophol -  
 Mohsen -
Hello,

Can someone help me with multiplying a number by hours
for example:

in A1 I have the number 2
in B1 I have 2:10 (time format [hh]:mm)
and in C1 I would like to get the result in hours from the multiplication of A1 by B1 knowing that the value of A1 can be variable and the value of B1 is always fixed.

thank you for your help.

9 answers

  1. kaiiosan Posted messages 329 Status Member 53
     
    To perform operations on hours, they must be converted into hundredths of an hour (ch)..
    100ch = 60min
    1ch = 0.6min

    conversion minute > ch

    30min = 30/0.6 = 50ch
    42min = 42/0.6 = 70ch
    60min = 60/0.6 = 100ch

    1st example (2h30 x 3)

    convert 2h30 to ch
    = 2h + 30min = 200 + (30/0.6) = 250ch

    operation:
    250 x 3 = 750

    convert 750 to hour minute
    >> 700ch = 7h
    >> 50ch = 50 x 0.6 = 30min

    result:
    2h30 x 3 = 7h30min

    2nd example (3h45 x 3)

    convert 3h45 to ch
    = 3h + 45min = 300 + (45/0.6) = 375ch

    operation:
    375 x 3 = 1125

    convert 1125 to hour minute
    >> 1100ch = 11h
    >> 25ch = 25 x 0.6 = 15min

    result:
    3h45 x 3 = 11h15min

    it's up to you to optimize this with formulas in Excel.
    11
    1. tuti
       
      Good evening,

      I need to process a questionnaire in Excel. I would like to multiply a number by a word. To be more precise, I want to know how many people answered yes and how many people answered no for the same question. Thank you to those who want to help me.
      0
    2. Sylvain D.
       
      1-Create a column, for example C, with the number 1 in all cells (enter 1 in one cell, then copy/select column C/paste)

      Format all responses in the same way YES/NO in column B (which leaves a margin in A if needed otherwise directly in A by modifying the formulas below)
      Be careful, if the responses YES/NO are not in uppercase, it won't count them, or you need to modify the criteria in quotes of the formula.

      In D1 indicate YES
      In D2 retrieve the formula: =SUMIF(B:B; "YES"; C:C)
      In E1 indicate NO
      In E2 retrieve the formula: =SUMIF(B:B; "NO"; C:C)

      There you go.
      0