What is WEEKNUM function in Excel? WEEKNUM function is one of Date and Time functions in Microsoft Excel that returns the week number of a specific date. For example, the week containing January 1 is the first week of the year, and is numbered week 1. There are two systems used for this function: System 1 The week containing January 1 is the…

# Tag: WEEKNUM function

## Get week number from date in Excel

If you need to get the week number from the day from a date, you can use the WEEKNUM function. The date must be in a form that Excel recognizes as a valid date. Note: The WEEKNUM function takes two arguments, a date, and, optionally, an argument called return_type, which controls the scheme used to calculate the week number. Formula =WEEKNUM(date)…

## Pad week numbers with zeros in Excel

To pad week numbers (or any number) with zeros using a formula, you can use the TEXT function. Formula =TEXT(WEEKNUM(date,type),”00″) Explanation In the example show, D5 contains this formula: =TEXT(WEEKNUM(B5,21),”00″) Which returns the string “07”. How this formula works The TEXT function can apply number formats of any kind, including currency, date, percentage, etc. By applying a number format like…

## Sum by week number in Excel

This tutorial shows how to Sum by week number in Excel using the example below; Formula =SUMIFS(sumrange,weekrange,week) Explanation To sum by week, you can use a formula based on the SUMIFS function. In the example shown, the formula in H5 is: =SUMIFS(total,color,$G5,week,H$4) where “total” is the named range D5:D16, “color” is the named range B5:B16, and “week” is the named range E5:E16.…