Use this online Months To Weeks calculator to find the equivalent number of weeks for the given months. As per Gregorian calendar, one month is approximately equal to 4.35 weeks. So for the period of twelve months in a year, there are around 52.1429 weeks. 1 month is approximately to 0.2301 weeks. Thus, to convert months to weeks, multiply it by 0.2301. Enter the number of months and get the equal number of weeks from this Months To Weeks Converter.