how many weeks are there in a year

How many Weeks are in a Year?

Weeks in a year calculation

One year has approximatly 52 weeks.

Weeks in a common Year

One calendar common year has 365 days:

1 common year = 365 days = (365 days) / (7 days/week) = 52.143 weeks = 52 weeks + 1 day

Weeks in a leap year

 One calendar leap year occures every 4 years, except for years that are divisable by 100 and not divisable by 400.
One calendar leap year has 366 days, when February has 29 days:

1 leap year = 366 days = (366 days) / (7 days/week) = 52.286 weeks = 52 weeks + 2 days

Weeks in a year chart

Year	Leap Year	Weeks in a Year
2013	no	52weeks + 1day
2014	no	52weeks + 1day
2015	no	52weeks + 1day
2016	yes	52weeks + 2days
2017	no	52weeks + 1day
2018	no	52weeks + 1day
2019	no	52weeks + 1day
2020	yes	52weeks + 2days
2021	no	52weeks + 1day
2022	no	52weeks + 1day
2023	no	52weeks + 1day
2024	yes	52weeks + 2days
2025	no	52weeks + 1day
2026	no	52weeks + 1day