Date Calculator

Perform various date calculations easily: add/subtract days, calculate differences between dates, add months/years, and more. Fully responsive and user-friendly for all devices.

Enter date in YYYY-MM-DD format.

About the Date Calculator

This tool now offers multiple date calculations: adding/subtracting days, finding differences between dates, adding months/years, and calculating age. It's useful for planning schedules, tracking durations, and more.

Examples

  • Add Days: Enter "2025-09-10" and 10 days → Result: 2025-09-20
  • Date Difference: Start "2025-09-10", End "2025-10-10" → Result: 30 days
  • Add Months: Base "2025-09-10", 2 months → Result: 2025-11-10
  • Age: Birth "2000-01-01" → Age in years, months, days

Tips for Using the Calculator

  • Use negative numbers to subtract days, months, or years.
  • Ensure dates are in YYYY-MM-DD format for accurate results.
  • For age calculation, leave current date blank to use today's date automatically.
  • This tool handles leap years and month-end adjustments intelligently.
  • Accessible on all devices: mobile, tablet, desktop.