How to Calculate the Month From the Week Number

Whether you have forgotten the month or are curious as to how many weeks have gone by in the year, it is a useful skill to be able to calculate the month from the week number. A little math is required but it is ultimately a process of simple multiplication.

• 1

  Take the week number and multiply it by 7. For example, if it is week number 12, multiply 12 by 7. This will indicate the number of days it has been, rounded to the nearest week.

• 2

  Divide this number by 30. In the example, the number we derived from the calculation was 84. 84 divided by 30 is 2.8

• 3

  Use this number to figure out the month. 2.8 means that it is March. The number before the decimal point indicates the months past. Always round the number up, this will give you the current month.