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How to count how many of a weekday are in a month in Excel and Google Sheets
Topic:COUNT & counting patternsExcel & Google Sheets
=SUMPRODUCT((WEEKDAY(DATE(YEAR(A2),MONTH(A2),ROW(INDIRECT("1:"&DAY(EOMONTH(A2,0))))),2)=B2)*1)Try it with your data
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Step by step
- 1Put any date in the target month in column A (e.g., 2024-03-01).
- 2Put the weekday number to count in column B (1=Mon … 7=Sun using WEEKDAY mode 2).
- 3In C2 enter: =SUMPRODUCT((WEEKDAY(DATE(YEAR(A2),MONTH(A2),ROW(INDIRECT("1:"&DAY(EOMONTH(A2,0))))),2)=B2)*1)
- 4This builds a virtual array of every day in the month and counts how many match the target weekday.
Tips
- A month always has either 4 or 5 of any given weekday — if the result is anything else, check that your weekday number is 1–7.
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Frequently asked
Can I count Sundays using this formula?
Yes — enter 7 in column B (WEEKDAY mode 2 maps Sunday to 7).
Does EOMONTH handle leap years?
Yes, EOMONTH automatically returns the correct last day, including February 29 in leap years.
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