How to convert weeks to days
Multiply the number of weeks by 7. That is all there is to it, because the factor between weeks and days never changes.
Formula
d = wk × 7
Example: 4 weeks × 7 = 28 days.
Weeks to Days chart
| Weeks (wk) | Days (d) |
|---|---|
| 1 wk | 7 d |
| 2 wk | 14 d |
| 3 wk | 21 d |
| 4 wk | 28 d |
| 5 wk | 35 d |
| 6 wk | 42 d |
| 8 wk | 56 d |
| 10 wk | 70 d |
| 12 wk | 84 d |
| 13 wk | 91 d |
| 16 wk | 112 d |
| 20 wk | 140 d |
| 26 wk | 182 d |
| 40 wk | 280 d |
| 52 wk | 364 d |
Values are rounded to six decimals below 1, four decimals up to 1,000 and two decimals above. The converter above shows more digits.
About the units
One week is 604,800 seconds.
One day is 86,400 seconds.
Need the other direction? Use the Days to Weeks converter. For every time unit at once, open the Time Unit Converter.
Frequently asked questions
How many days are in a week?
There are 7 days in one week.
How do I convert weeks to days?
Multiply the number of weeks by 7. For example: 4 weeks × 7 = 28 days.
What is 13 weeks in days?
13 weeks equals 91 days.