Weeks Calculator

Add or subtract weeks from a date to find a future or past date.

Result will appear here

How to Calculate Dates Using Weeks

Method 1: Calendar Calculation

Count forward or backward week by week on a calendar. Each week equals 7 days. This method is simple but can be time-consuming for larger numbers of weeks.

Method 2: Mathematical Calculation

Multiply the number of weeks by 7 to get the total days, then add or subtract from your start date. This method is faster and more accurate for longer time periods.

Common Applications

  • Project deadline calculations
  • Event planning and scheduling
  • Pregnancy due date estimation
  • Subscription period calculations