Calculate the difference between any two dates instantly.
Our date calculator helps you find the exact number of days, weeks, months, and years between any two dates.
The business days calculator excludes weekends, making it perfect for project planning and work schedules.
Add or subtract any number of days, weeks, or months from a date.
Calculate the exact number of days, weeks, and months between two dates.
Option to include or exclude weekends and holidays from calculations.
Our free online date calculator helps you quickly find the number of days between two dates, add or subtract days from any date, and plan deadlines with precision. Whether you're calculating a project timeline, counting down to an event, figuring out payment due dates, or planning a vacation, this tool gives you instant, accurate results. The calculator supports multiple calculation modes: find the difference between two dates, add days to a specific date, or subtract days to find an earlier date.
The date calculator supports both calendar days and business days (excluding weekends). It accounts for leap years and varying month lengths automatically. Results are shown in multiple formats β days, weeks, months, and years β so you can use whichever unit makes the most sense for your needs. Perfect for project managers, accountants, event planners, and anyone who needs precise date calculations. No signup required β just enter your dates and get results instantly.
Enter your start and end dates in the calculator above. It will instantly show the difference in days, weeks, months, and years. The calculator automatically accounts for leap years and varying month lengths.
Yes, our date calculator can exclude weekends from the count, giving you only working days between two dates. This is perfect for project planning, contract deadlines, and payroll calculations.
Absolutely. Our calculator accounts for leap years, varying month lengths, and all calendar rules automatically. It uses the Gregorian calendar system for maximum accuracy.
Select "Add Days" mode, enter your starting date, then specify how many days, weeks, or months to add. The calculator will show the resulting date instantly.
Yes! The calculator shows the difference in multiple formats: total days, weeks, months, and years. You can see the breakdown in whichever unit is most useful for your needs.
Yes, the date calculator works for any date β past, present, or future. Calculate historical date differences or plan future deadlines with equal accuracy.
Our calculator supports dates from year 1 to year 9999 in the Gregorian calendar, giving you virtually unlimited range for any calculation.
While you can calculate age using the date calculator, we recommend our dedicated Age Calculator tool for more detailed age information including zodiac signs and generational data.
Use the business days mode to exclude weekends. For more advanced payroll calculations including holidays, check our Working Days Calculator tool.
Yes, completely free with no signup required. Use it as many times as you need for personal or business purposes.
Last updated: February 12, 2026