Add Weeks to Date Calculator

Find the calendar date that results after adding a specified number of weeks to a starting date.

Uses the Gregorian calendar; local holidays or time zones are not considered.

Examples

  • 2025-01-01 plus 4 weeks ⇒ 2025-01-29
  • 2024-12-15 plus 6 weeks ⇒ 2025-01-26

FAQ

Does it account for leap years?

Yes, JavaScript's Date object manages leap years automatically.

Are weeks assumed to be 7 days?

Yes, each week is exactly 7 days.

What if result crosses year end?

The calculator adjusts the year as needed.

Additional Information

  • Adding weeks is useful for scheduling recurring events.
  • Weeks are treated as seven-day intervals regardless of daylight saving changes.