Date Difference Calculator

Calculate the exact number of days, weeks, months, and years between two dates

Start Date

End Date

Include end date in total count

Calculation Result

Difference in Days

365 Days

0y 11m 30d (365 total days)

Weeks

52 weeks, 1 days

Years & Months

0y 11m 30d

Select Start Date and End Date.

Choose whether to include the end date in count.

View total days, weeks, and calendar breakdown.

Calendar Interval Calculation

Δt = End Date - Start Date

Computes total calendar days and breaks down into years, months, weeks, and remaining days.

45 calendar days interval.

• 1 month and 14 days

• Total 45 calendar days (6 weeks and 3 days)

45 total days between the two dates.

Yes, the calculator automatically detects when the start date is after the end date and computes the absolute span.

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