Weeks Between Two Dates
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About this calculator
Find out how many weeks are between two dates. Useful for project planning, sprint scheduling, and tracking durations in weekly increments.
How it works
The calculator computes the total difference in seconds between the two dates, then divides by 604,800 (the number of seconds in one week: 7 days × 24 hours × 60 minutes × 60 seconds). The result includes decimals for partial weeks — so 2.5 weeks means two weeks and 3.5 days.
When to use this calculator
Obstetricians track pregnancy in weeks for developmental milestone monitoring. Agile development teams plan sprints in weekly increments. Fitness coaches design training programs in weekly blocks. Academic institutions schedule term lengths in weeks. Real estate agents calculate weeks until closing. Landlords determine lease duration in weeks for short-term rental agreements.