Date Difference Calculator
Need to know exactly how many days are between two dates? This calculator computes the total days, weeks, approximate months and years, and even the number of business days (excluding weekends) between any two dates. Useful for project planning, contract deadlines, event countdowns, and more.
Enter the start and end dates using year, month, and day fields. The calculator handles the date order automatically, so it does not matter which date is earlier.
Results include:
- Total days between the two dates (calendar days)
- Total weeks (including fractional weeks)
- Approximate months using the average month length of 30.4375 days
- Approximate years using the average year length of 365.2425 days
- Business days counting only Monday through Friday
The business day count excludes weekends but does not account for public holidays, which vary by country and region.