How do I calculate days between two dates?

Select a start date and end date, and the tool instantly shows the difference in days, weeks, and months.

Date / Duration Calculator

Calculate the difference between two dates. Add or subtract days, months, and years.

How to use: Pick two dates to find the difference, or add/subtract days from a date.

Start Date

End Date

Days: 0

Weeks: 0

Months: 0

Date Duration Calculator

Select two dates to calculate the difference in days, weeks, and approximate months. Useful for project planning, age calculations, and countdown tracking.

Frequently Asked Questions

How do I calculate days between two dates?: Select a start date and end date, and the tool instantly shows the difference in days, weeks, and months.