Weeks to Days Converter
Convert weeks to days instantly. Type a value, change either unit, or press swap to go the other way. 1 week = 7 days.
1 week = 7 days
How to convert weeks to days
days = weeks × 7
To convert weeks to days, multiply the value by 7. To go back from days to weeks, divide by the same number (or multiply by 0.1428571429).
Worked examples
- 3 wk: 3 × 7 = 21 d
- 4 wk: 4 × 7 = 28 d
- 6 wk: 6 × 7 = 42 d
Multiply by 7. A four-week month is 28 days, which is why calendar months do not line up with whole weeks.
Weeks to Days conversion table
Weeks to Days
| wk | d |
|---|---|
| 1 | 7 |
| 2 | 14 |
| 3 | 21 |
| 4 | 28 |
| 6 | 42 |
| 8 | 56 |
| 12 | 84 |
| 26 | 182 |
| 40 | 280 |
| 52 | 364 |
Days to Weeks
| d | wk |
|---|---|
| 1 | 0.14285714 |
| 2 | 0.28571429 |
| 3 | 0.42857143 |
| 4 | 0.57142857 |
| 6 | 0.85714286 |
| 8 | 1.1428571 |
| 12 | 1.7142857 |
| 26 | 3.7142857 |
| 40 | 5.7142857 |
| 52 | 7.4285714 |
Time equivalents
See how one week and one day compare with every other time unit on the site.
1 week equals
| Unit | Value |
|---|---|
| seconds (s) | 604,800 |
| minutes (min) | 10,080 |
| hours (h) | 168 |
| days (d) | 7 |
1 day equals
| Unit | Value |
|---|---|
| seconds (s) | 86,400 |
| minutes (min) | 1,440 |
| hours (h) | 24 |
| weeks (wk) | 0.1428571 |
When you need to convert weeks to days
Pregnancy dates, project plans, leave entitlements and delivery estimates are often counted in weeks, while deadlines and trials run in days. Converting helps you plan schedules and work out how long something really is.
About the units
Week (wk)
A week is seven days, or 168 hours. It is the standard planning interval for work and school.
Day (d)
A day is 24 hours, or 86,400 seconds, based on one rotation of the Earth. It is the basic unit of calendars and deadlines.
Frequently asked questions
How do I convert weeks to days?
Multiply the number of weeks by 7. For example, 10 weeks × 7 = 70 days.
How many days are in one week?
There are 7 days in one week.
How many weeks are in one day?
There are 0.1428571429 weeks in one day.
How many weeks are in a year?
A year has 52 weeks and 1 day (52 weeks and 2 days in a leap year), which is 365 or 366 days. A 40-week pregnancy is 280 days.
Can I convert other time units with this tool?
Yes. Use the From and To drop-downs in the converter to choose any time unit, or press the swap button to reverse the conversion. All calculations use internationally defined conversion factors.