1. What is Week Calculation?

Week calculation determines the number of full weeks between two dates. This is useful for project planning, pregnancy tracking, financial calculations, and other time-based measurements.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• End date — The later date in the range
• Start date — The earlier date in the range
• 7 — Number of days in a week
• ⌊ ⌋ — Floor function (rounding down to nearest integer)

Explanation: The calculation first determines the total days between dates, then divides by 7 (days in a week) and rounds down to get complete weeks.

3. Importance of Week Calculation

Details: Accurate week counting is essential for project timelines, payroll calculations, academic schedules, medical tracking, and many other applications where time measurement in weeks is more practical than days or months.

4. Using the Calculator

Tips: Enter both start and end dates in the format YYYY-MM-DD. The end date must be after the start date for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Does this include partial weeks?
A: No, this calculates complete weeks only. Any remaining days are shown separately.

Q2: How are leap years handled?
A: The date difference calculation automatically accounts for leap years in the period.

Q3: What's the maximum date range?
A: There's no practical limit, but very large ranges may be less meaningful.

Q4: Can I calculate weeks from today?
A: Yes, use today's date as either start or end date as needed.

Q5: How precise is this calculation?
A: It's precise to the day, with weeks rounded down to the nearest whole number.