Calculate number of total rows when new rows are added at given interval

dicken

Active Member
Joined
Feb 12, 2022
Messages
292
Office Version
  1. 365
Platform
  1. Windows
Hi, I've been trying to write a formula to calculate the number of rows when new rows are inserted at a give interval,

so in this case I have , keeping it simple, 13 rows, and I want to insert 3 rows at every 2nd row,

so ( ( 13 /2 ) * 3 ) + 13 , but I don't want rows added to then end; the best I've come up with so far is this, but are there better ways ?

Excel Formula:
 =( IF( 13/2 = QUOTIENT(13,2) ,  ( (QUOTIENT(13,2)-1)* 3) + 13  , (QUOTIENT(13,3)*3) + 13 ))   -3,



Richard.
 

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Just, to add, see edit option? , the problem is to to deal with extra unwanted rows, so if grouping by 2, then both 13 and 14 want there last insert at
what will be row 27. as this is to used to find the positions of where rows need to be inserted.
 
Upvote 0
Try:
Excel Formula:
=(QUOTIENT(13,2)-IF(ISODD(13),1,2))*3+13
 
Upvote 1

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