Unit converter — Time
Weeks to days converter
Convert weeks (week) to days (day). Source-cited conversion factor, exact to the displayed precision.
Results are mathematically exact for the displayed precision. How we calculate.
Convert weeks to days— the formula
Weeks convert to days by multiplying by the published conversion factor. The factor below is exact to the precision shown, sourced from the citation under the formula.
day = week × 7
week = day × 0.142857
Second: SI base unit (BIPM). Days, weeks: exact. Month = 30.4375 days (year/12). Year = 365.25 days (Julian year, used in astronomy).
Frequently asked questions
How many days are in a week?
1 week = 7 day. To convert any amount, multiply by 7.How do you convert weeks to days?
Multiply the number of weeks by 7 to get days. The formula is shown in the "How it's calculated" section above.Where does the conversion factor come from?
It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.