Convert Weeks to Days
1 week is 7 d. One week is exactly 7 days.
One week is 7 days. To convert weeks to days, multiply by 7; to go the other way, divide by 7 or multiply by 0.14285714. The factor is exact rather than rounded: it follows from BIPM SI Brochure. Seven days, exactly 604,800 seconds.
Factor checked against the defining standard · How we check
Days
7 d
- Weeks × 7
value * 77 d
1 week in every time unit
| Unit | Value | Exact factor |
|---|---|---|
| seconds | 604,800 s | × 604,800 |
| minutes | 10,080 min | × 10,080 |
| hours | 168 h | × 168 |
| days | 7 d | × 7 |
| weeks (as entered) | 1 wk | — |
| months | 0.2299841886 mo | × 0.229984188587 |
| years | 0.01916534905 yr | × 0.0191653490489 |
Factors are entered by hand from BIPM SI Brochure rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert weeks to days?
- 1.Take the measurement in weeks.
- 2.Multiply by 7 — that is how many days fit in one week.
- 3.To go back the other way, divide by 7, or multiply by 0.14285714.
Weeks to days conversion table
| Weeks | Days |
|---|---|
| 1 wk | 7 d |
| 2 wk | 14 d |
| 3 wk | 21 d |
| 4 wk | 28 d |
| 5 wk | 35 d |
| 6 wk | 42 d |
| 7 wk | 49 d |
| 8 wk | 56 d |
| 9 wk | 63 d |
| 10 wk | 70 d |
| 12 wk | 84 d |
| 15 wk | 105 d |
| 20 wk | 140 d |
| 25 wk | 175 d |
| 50 wk | 350 d |
| 100 wk | 700 d |
What are weeks and days?
- Week (wk)
- Seven days, exactly 604,800 seconds. The only common unit of time with no astronomical basis at all.
- Day (d)
- Exactly 86,400 seconds by convention. A solar day runs a few milliseconds long or short, which is what a leap second corrects.
Source: BIPM SI Brochure — the second, and units accepted for use with the SI
Questions people actually ask
- How many days are in a week?
- 7. Exactly 86,400 seconds by convention. A solar day runs a few milliseconds long or short, which is what a leap second corrects.
- How do I convert days back to weeks?
- Divide by 7, or multiply by 0.14285714 — they are the same operation.
Other time conversions
Days to weeks — the same conversion the other way.