Week Calculator

Weeks CalculatorSC: Calculate dates, week numbers, and time spans with precision

Convert Date to Week Number

Calculation Results

Week Number
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Year
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Week Range
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Days in Year
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About Week Number Calculation

This calculation converts a specific date to its corresponding week number based on the selected week numbering system. Different systems have different rules for determining the first week of the year and the starting day of the week.

Quick Access Dates

Convert Week Number to Date Range

Week Details

Week Starts On
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Week Ends On
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Days in Week
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Week Progress
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About Week to Date Calculation

This calculation determines the date range for a specific week number based on the selected year and week numbering system. The week numbering system determines which day is considered the first day of the week and how the first week of the year is defined.

Quick Access Weeks

Calculate Difference Between Dates

Difference Results

Total Weeks
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Total Days
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Work Weeks
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Weekends
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About Date Difference Calculation

This calculation determines the difference between two dates, showing the total time span in weeks and days. It also calculates business days (work weeks) and weekend days separately, which is useful for project planning and scheduling purposes.

Quick Access Ranges

Add or Subtract Weeks from a Date

Result

New Date
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Day of Week
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Days Added
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Business Days
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About Add/Subtract Weeks Calculation

This calculation shows the resulting date when adding or subtracting weeks from your selected base date. The operation considers your selection of whether to include weekends in the calculation. When "Business Days Only" is selected, weekends are excluded from the day count.

Quick Access Operations

Calculator Settings

Display Options

Calculation Options