Find the exact number of days, weeks, months, and years between any two dates — instantly.
Pick a start date and an end date using the date pickers. Click "Use Today" to set the end date to today automatically.
The tool instantly shows the difference in days, weeks, months, and years — plus a plain-English summary.
Use the output for age calculations, project deadlines, contract durations, or any date-based planning.
Enter your start and end date and click Calculate. The result shows the exact number of calendar days between the two dates, including or excluding the start day.
Yes. Set your birth date as the start date and today as the end date. The calculator will show your exact age in days, weeks, months, and years.
Yes. The calculation uses the actual calendar dates, so leap years (366 days) are handled correctly automatically.
The tool calculates the absolute difference and notes which direction the dates are — it won't show a negative result.