Weeks to Days
Convert any number of weeks to exact total days instantly and accurately.
You might also need
How It Works
Converts weeks to days by multiplying by 7. One week = exactly 7 days.
Formula
Days = Weeks x 7Quick Reference
Common calculations — results you can verify instantly.
1 week
1×7
7 days
52 weeks
52×7
364 days
40 weeks
40×7
280 days (pregnancy)
Tips & Shortcuts
52 weeks = 364 days (not 365 = one year).
40 weeks pregnancy = 280 days.
Common Mistakes
Treating year as exactly 52 weeks
52 x 7 = 364. A year = 365 or 366 days.
Using 5-day work week for calendar weeks
Calendar weeks = 7 days. Business weeks = 5 days.
Frequently Asked Questions
84 days.
280 days from LMP.
Related Calculators
Days to Minutes
Convert any number of days to exact total minutes instantly and accurately.
Minutes to Days
Convert minutes to days, hours, and remaining minutes.
Percentage Calculator
Find X% of Y, X is what % of Y, or percentage change.
Percent Off Calculator
Find the sale price after a percentage discount.
Age Calculator
Calculate exact age in years, months, and days.
Date Calculator
Add or subtract days, weeks, months, or years from any date.