Date Difference Calculator
Calculate the number of days and weeks between two calendar dates.
Date Difference Calculator
Calculate the number of days and weeks between two calendar dates.
Enter the earlier date in YYYY-MM-DD format.
Enter the later date in YYYY-MM-DD format.
Real-World Examples
Vacation planning
2024-03-01 to 2024-03-15
14 days, 2.00 weeks
Project timeline
2024-01-01 to 2024-12-31
365 days, 52.14 weeks (366 in a leap year)
Short sprint
2024-05-10 to 2024-05-24
14 days, 2.00 weeks
Common Mistakes to Avoid
Including both endpoints as full days
Fix: This calculator counts the difference between dates, not inclusive of both days. From Jan 1 to Jan 2 is 1 day apart, not 2. Add 1 if you need an inclusive count.
Swapping start and end dates
Fix: If the end date is earlier than the start date, the result will be negative. Double-check the order of your entries.