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Weeks Between Dates Calculator

Calculate the number of weeks between any two dates. The Weeks Between Dates Calculator shows the result in complete weeks plus remaining days, along with the total day count and the exact decimal week value.

How to Calculate Weeks Between Two Dates

Formula: Total Days = |Date₂ − Date₁| Complete Weeks = floor(Total Days ÷ 7) Remaining Days = Total Days mod 7.

The absolute value is used so the order of the two dates does not matter.

Decimal weeks = Total Days ÷ 7 (rounded to four decimal places).

• Example: January 1 to March 15 = 73 days = 10 weeks and 3 days (10.4286 weeks).

• Example: June 10 to June 10 of the next year = 365 days = 52 weeks and 1 day.

Leap years are handled automatically — a February 29 between the two dates adds exactly one extra day.


See also