There are approximately 26 fortnights in a standard year. A fortnight is defined as a period of 14 days, or two weeks, and since there are 52 weeks in a year, dividing 52 by 2 gives 26 fortnights in a year. More precisely, considering the average Gregorian year length (365.2425 days), there are about 26.09 fortnights in a year.
