Weeks Between Dates Calculator

Count the exact number of weeks and days between any two dates.

Free to useNo signup requiredRuns in your browserUpdated July 2026

Start Date (Day)

Start Month

Start Year

End Date (Day)

End Month

End Year

Formula / Logic

Weeks = (End Date - Start Date) / 7. Remaining days after full weeks are displayed separately.

Start Day:1

Start Month:1

Start Year:2026

End Day:1

End Month:3

End Year:2026

Result: Total Weeks: 8, Extra Days: 3, Total Days: 59

What counts as a full week?

A full week is 7 consecutive days. The calculator divides total days by 7 and shows remaining extra days that are not part of a complete week.

Does the start date count as day 1?

No, the calculation counts full 24-hour periods between the two dates. The start date is considered day 0, and each subsequent day adds 1.

Can I calculate for future dates?

Yes, this calculator works for any date range in the past, present, or future between the year 1900 and 2100.