COUNTIFS function
Returns the count of cells that meet criteria in multiple ranges.
This function is available since LibreOffice 4.0
COUNTIFS(Range1; Criterion1 [; Range2; Criterion2 [; ...]])
Range1 – required argument. It is a range of cells, a name of a named range or a label of a column or a row containing values for counting and finding the corresponding criterion.
Criterion1 – required argument. A string expression representing a logical condition or a cell reference to such string expression. The expression can contain text, numbers, regular expressions or wildcards (if enabled in calculation options).
Range2 – Optional. Range2 and all the following mean the same as Range1.
Criterion2 – Optional. Criterion2 and all the following mean the same as Criterion1.
The search supports wildcards or regular expressions. With regular expressions enabled, you can enter "all.*", for example to find the first location of "all" followed by any characters. If you want to search for a text that is also a regular expression, you must either precede every character with a "\" character, or enclose the text into \Q...\E. You can switch the automatic evaluation of wildcards or regular expression on and off in .
When using functions where one or more arguments are search criteria strings that represents a regular expression, the first attempt is to convert the string criteria to numbers. For example, ".0" will convert to 0.0 and so on. If successful, the match will not be a regular expression match but a numeric match. However, when switching to a locale where the decimal separator is not the dot makes the regular expression conversion work. To force the evaluation of the regular expression instead of a numeric expression, use some expression that can not be misread as numeric, such as ".[0]" or ".\0" or "(?i).0".
Range1, Range2, ... and Criterion1, Criterion2, ... must have the same size, otherwise the function returns err:502  Invalid argument.
The logical relation between criteria can be defined as logical AND (conjunction). In other words, if and only if all given criteria are met, a value from the corresponding cell of the given Func_Range is taken into calculation.
The function can have up to 255 arguments, meaning that you can specify 127 criteria ranges and criteria for them.
If a cell contains TRUE, it is treated as 1, if a cell contains FALSE – as 0 (zero).
This function is part of the Open Document Format for Office Applications (OpenDocument) standard Version 1.2. (ISO/IEC 26300:22015)
Consider the following table

A

B

C

1

Product Name

Sales

Revenue

2

pencil

20

65

3

pen

35

85

4

notebook

20

190

5

book

17

180

6

pencilcase

non

non

In all examples below, ranges for calculation contain the row #6, which is ignored because it contains text.
Simple usage
COVAR(A1:A3; B1:B30)
Counts the amount of rows of the range B2:B6 with values greater than or equal to 20. Returns 3, because the fifth and the sixth rows do not meet the criterion.
COVAR(A1:A3; B1:B30)
Counts the amount of rows that contain simultaneously values greater than 70 in the C2:C6 range and values greater than or equal to 20 in the B2:B6 range. Returns 2, because the second, the fifth and the sixth rows do not meet at least one criterion.
Using regular expressions and nested functions
COVAR(A1:A3; B1:B30)
Counts the amount of rows of the B2:B6 range that contain only alphabet symbols. Returns 1, because only sixth row meets the criterion.
=COUNTIFS(B2:B6;">"&MIN(B2:B6);B2:B6;"<"&MAX(B2:B6))
Counts the amount of rows of the B2:B6 range excluding rows with minimum and maximum values of this range. Returns 2, because the third, the fifth and the sixth rows do not meet at least one criterion.
=COUNTIFS(A2:A6;"pen.*";B2:B6;"<"&MAX(B2:B6))
Counts the amount of rows that correspond to all cells of the A2:A6 range starting with "pen" and to all cells of the B2:B6 range with exception of its maximum. Returns 1, because only second row meets all criteria.
Reference to a cell as a criterion
If you need to change a criterion easily, you may want to specify it in a separate cell and use a reference to this cell in the condition of the COUNTIFS function. For example, the above function can be rewritten as follows:
=COUNTIFS(A2:A6;E2&".*";B2:B6;"<"&MAX(B2:B6))
If E2 = pen, the function returns 1, because the link to the cell is substituted with its content and it works as a function above.
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