🧮 Free Calculator

Date Difference Calculator

Pick a start and end date. We show calendar days, whole weeks, and an approximate month count (30.44-day average month — not the same as “calendar months”).

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Inputs

Results

0

Days between

0
Whole weeks
0
Approx. months (avg length)

Reading the numbers

Days use midnight-to-midnight UTC-neutral local dates in your browser. Weeks are whole 7-day blocks inside that span. Approximate months divide the day count by 30.44 — handy for rough duration, not for legal “one calendar month” rules.