Date Calculator

Add or subtract years, months, weeks, and days from a date
About Date Calculations

Date calculations help you find future or past dates by adding or subtracting time periods.

Common Uses:

  • Project Planning: Calculate deadlines and milestones
  • Financial: Due dates for payments and investments
  • Personal: Anniversaries, birthdays, and events
  • Legal: Contract expiration and renewal dates

Calculation Notes:

  • Months are calculated based on calendar months (28-31 days)
  • Years account for leap years automatically
  • Weeks are converted to 7-day periods
  • Results adjust for month and year boundaries

Examples:

  • 90 days from today: Useful for trial periods
  • 6 months before a date: Planning ahead for events
  • 1 year + 3 months: Complex date calculations