Excel OfficeExcel Tutorials for beginners, Intermediates and experts.
To confirm that a range of cells all have the same value, you can use a formula based on the COUNTIF function. Formula =COUNTIF(range,”<>value”)=0 Explanation In the example shown, the formula in C9 is: =COUNTIF(C5:C8,”<>ok”)=0 Note: this formula is not case-sensitive, you can find a case-sensitive formula here. How this formula works This formula relies on… read more »
To confirm that a range of cells all have the same value, you can use a formula based on the COUNTIF function. See illustration below: Formula =COUNTIF(range,”<>value”)=0 Explanation In the example shown, the formula in C9 is: =COUNTIF(C5:C8,”<>ok”)=0 Note: this formula is not case-sensitive, you can find a case-sensitive formula here. How this formula works This… read more »
To test if all values in a range are at least a certain threshold value, you can use the COUNTIF function together with the NOT function. Formula =NOT(COUNTIF(range,”<65″)) Explanation In the example shown, the formula in G5 is: =NOT(COUNTIF(B5:F5,”<65″)) How this formula works At the core, this formula uses the COUNTIF function to count any… read more »
To retrieve the first match in two ranges of values, you can use a formula based on the INDEX, MATCH, and COUNTIF functions. Formula =INDEX(range2,MATCH(TRUE,COUNTIF(range1,range2)>0,0)) Explanation In the example shown, the formula in G5 is: =INDEX(range2,MATCH(TRUE,COUNTIF(range1,range2)>0,0)) where “range1” is the named range B5:B8, “range2” is the named range D5:D7. How this formula works In this example the named range… read more »
To count how many times a specific a word (or any substring) appears inside a range of cells, you can use a formula based on the SUBSTITUTE, LEN, and SUMPRODUCT functions. Formula =SUMPRODUCT((LEN(range)-LEN(SUBSTITUTE(range,text,””)))/LEN(text)) Explanation In the example shown, the formula in C11 is: =SUMPRODUCT((LEN(B5:B8)-LEN(SUBSTITUTE(B5:B8,C2,””)))/LEN(C2)) Note: The formula on this page counts instances of a word in a… read more »
This tutorial show how to Count birthdays by month in Excel using the example below. To count the number of birthdays in a list, you can use a formula based on the SUMPRODUCT and MONTH functions. Formula =SUMPRODUCT(–(MONTH(birthday)=number)) Explanation of how this formula works In the example shown, E5 contains this formula: =SUMPRODUCT(–(MONTH(birthday)=D5)) This formula counts… read more »
This tutorials shows how to Rank numbers without ties in Excel. To assign rank without ties, you can use a formula based on the RANK and COUNTIF functions. Formula =RANK(A1,range)+COUNTIF(exp_range,A1)-1 Explanation In the example shown, the formula in E5 is: =RANK(C5,points)+COUNTIF($C$5:C5,C5)-1 where “points” is the named range How this formula works This formula breaks ties with… read more »
Reject duplicate data entry in a cell range. To allow only unique values in a given range, you can use data validation with a custom formula based on the COUNTIF function. Formula =COUNTIF(range,A1)<2 Note: Cell references in data validation formulas are relative to the upper left cell in the range selected when the validation rule… read more »
Set criteria to accept only unique number, ie no duplicate. To allow only unique numbers in a given range, you can use data validation with a custom formula based on the AND, ISNUMBER, and COUNTIF functions. Formula =AND(ISNUMBER(A1),COUNTIF(range,A1)<2) Cell references in data validation formulas are relative to the upper left cell in the range selected… read more »
Accept data that are not included in a specific range of records To allow only values that do not exist in a list, you can use data validation with a custom formula based on the COUNTIF function. Note: Excel has a built-in data validation rules for dropdown lists. This page explains how to create a custom validation… read more »