Time & Date
Months to Weeks Calculator
Convert months to weeks approximately, since months vary in length.
Formula
Weeks ≈ months × 4.345. This comes from the average year (365.25 days) divided by 12 months and then by 7 days per week, giving about 30.44 days per month.
How it works
Enter a number of months. The calculator gives an approximate week count, clearly marked rough, because real months run 28 to 31 days. For exact planning between two dates, use the date-difference calculator instead.
FAQs
Why is this only approximate?
Because months are not all the same length: February has 28 or 29 days, others have 30 or 31.
Why 4.345 weeks per month?
It is the average: 365.25 days per year ÷ 12 months ÷ 7 days per week ≈ 4.345.
Should I use this for contracts or deadlines?
No. For anything binding, count exact calendar dates instead of this rough estimate.