# 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

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