Add or subtract weeks from a date, find the week number, calculate the start and end of a week, and convert weeks into days with this free week calculator.
Add weeks:
Choose add weeks to find a future date from your starting date.
Subtract weeks:
Choose subtract weeks to find a date before your starting date.
Get week info:
Choose week info to find the weekday, week number, start of week, and end of week.
Convert weeks:
Choose convert weeks to days to see the equivalent day count.
A week calculator is useful for deadlines, pregnancy tracking, school schedules, project timelines, fitness plans, billing cycles, events, appointments, work schedules, and planning dates a certain number of weeks away.
It helps quickly convert weeks into dates or days without manually counting through the calendar.
Your result shows either the calculated date, total days, or week information depending on the calculation type selected. Results may include weekday, week number, week start date, week end date, and day of year.
A week calculator adds or subtracts weeks from a date, converts weeks to days, and shows week-related date details.
There are 7 days in one week.
Yes. Choose get week info to see the ISO week number for the selected date.
Yes. Use the week starts on field to calculate the week start and week end dates based on your preferred calendar style.