How many months is 100 days?

100 days is approximately 3.33 months. This is because there are approximately 30.44 days in a month (365 days in a year / 12 months in a year = 30.42 days per month on average) and 100 days / 30.44 days/month = 3.28 months. However, some months has 31 days and some 28 days or 29 days. So it’s not a exact number.