Weeks Calculator
Created by
Eon CalculatorAre you looking for a quick way to calculate the number of weeks between two dates and add or subtract weeks to a specific date? Our week's calculator is here to simplify your calculations. Whether you are planning for events, project deadlines, or milestones, this tool will help you stay on top of your schedule.
A week has seven days and week is used in many cultures and around the world. In the modern world week is used for work, school and keeping track of time globally. The ISO gives each week a number to keep the calendar the same across all countries. While most countries start the week on Monday, some cultures start the week on Sunday.
How this calculator function
Weeks between
To calculate weeks between two dates, find the total number of days between the start and later dates. Then, divide the total number of days by 7 to get the number of weeks. If there are leftover days, they can be shown as particle weeks or ignored.
Number of Weeks = Total Days Between Dates ÷ 7
For example: January 1, 2023 – January 22, 2023 = 21 days ÷ 7 = 3 weeks.
Adding weeks TAdding weeks to a specific date allows you to calculate forwarded time by adding a given number of weeks to a given date. This week’s calculator calculates the new date by simply adding the weeks (converted into days) to the starting date.
New Date = Starting Date + (Number of Weeks × 7 Days)
For example: February 1, 2023 + (4 × 7) = February 29, 2023.
Subtract weeks
Subtracting weeks from a specific date lets you calculate backward in time by removing a certain number of weeks from a given date. The week’s calculator calculates the new date by subtracting the weeks (converted into days) from the starting date.
New Date = Starting Date − (Number of Weeks × 7 Days)
For example: October 15, 2023 − (3 × 7) = September 24, 2023.
Steps to use this calculator
Step 1: Choose what you want to calculate: the number of weeks between two dates, add weeks to a date, or subtract weeks from a date. Each option serves a different purpose.
Step 2: Type in the start and end dates (if needed) in the format provided (e.g., DD/MM/YYYY). Make sure the date format is correct before proceeding.
Step 3: Once the details are entered and double-checked, click the “Calculate” button. The calculator will process the information and display the result immediately.
Step 4: To perform another calculation, reset the previous inputs using the “Clear” button. Then, enter new values and repeat the steps.
Weeks Calculator
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