ISNA function in Excel

Excel Tutorials for beginners, Intermediates and experts.

Check if range contains a value not in another range in Excel

To test if a range contains any values (i.e. at least one value) not in another range, you can use the SUMPRODUCT function with MATCH and ISNA. The MATCH function receives a single lookup value, and returns a single match if any. In this case, however, we are giving MATCH an array for lookup value,… read more »

Get work hours between dates custom schedule in Excel

To calculate work hours between two dates with a custom schedule, you can use a formula based on the WEEKDAY and SUMPRODUCT functions, with help from ROW, INDIRECT, and MID. Formula =SUMPRODUCT(MID(schedule,WEEKDAY(ROW(INDIRECT(start&”:”&end))),1) *ISNA(MATCH(ROW(INDIRECT(start&”:”&end)),holidays,0))) Explanation In the example shown, the formula in F8 is: =SUMPRODUCT(MID(D6,WEEKDAY(ROW(INDIRECT(B6&”:”&C6))),1) *ISNA(MATCH(ROW(INDIRECT(B6&”:”&C6)),holidays,0))) Which returns 36 hours, based on a custom schedule where… read more »

VLOOKUP without #N/A error in Excel

This tutorial shows how to calculate VLOOKUP without #N/A error in Excel using the example below; Formula =IFERROR(VLOOKUP(value,table,2,FALSE),””) Explanation To hide the #N/A error that VLOOKUP throws when it can’t find a value, you can use the IFERROR function to catch the error and return any value you like. How the formula works When VLOOKUP… read more »

Match first error in Excel

This tutorial shows how to Match first error in Excel using the example below; Formula {=MATCH(TRUE,ISERROR(range),0)} Explanation If you need to match the first error in a range of cells, you can use an array formula based on the MATCH and ISERROR functions. In the example shown, the formula is: {=MATCH(TRUE,ISERROR(B4:B11),0)} This is an array… read more »

Find missing values in Excel

This tutorial shows how to Find missing values in Excel using the example below; Formula =IF(COUNTIF(list,value),”OK”,”Missing”) Explanation If you want to find out what values in one list are missing from another list, you can use a ┬ásimple formula based on the COUNTIF function. The COUNTIF function counts cells that meet supplied criteria, returning the… read more »

Count missing values in Excel

This tutorial shows how to calculate Count missing values in Excel using the example below; Formula =SUMPRODUCT(–(COUNTIF(list1,list2)=0)) Explanation To count the values in one list that are missing from another list, you can use a formula based on the COUNTIF and SUMPRODUCT functions. In the example shown, the formula in H6 is: =SUMPRODUCT(–(COUNTIF(list1,list2)=0)) Which returns… read more »

Count cells not equal to many things in Excel

This tutorial shows how to Count cells not equal to many things in Excel using the example below; Formula =SUMPRODUCT(–(ISNA(MATCH(data,exclude,0)))) Explanation To count cells not equal to any of many things, you can use a formula based on the MATCH, ISNA, and SUMPRODUCT functions. In the example shown, the formula in cell F5 is: =SUMPRODUCT(–(ISNA(MATCH(data,exclude,0))))… read more »

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