About This Tool
The Date Calculator finds the exact number of days, weeks, months and years between two dates — useful for project planning, deadlines, anniversaries and more.
Frequently Asked Questions
Can the end date be before the start date?
Yes, the calculator will show the absolute difference regardless of the order you select dates in.
Does this include the start and end day?
The calculation shows the elapsed time between the two dates, similar to how age or duration is normally measured.
Can I calculate business days only?
This tool calculates total calendar days. Business-day-only calculations may be added as a separate tool in the future.