Time converter
Weeks to Days
If you need to know how many Days one Weeks contains, the answer is 7. The conversion is linear, so 10 wk is 70 d and 100 wk is 700 d. Use the converter for any other value.
Formula 1 wk = 7 d
Need the other direction? Days to Weeks.
How to convert Weeks to Days
A week is exactly seven days, or 604,800 seconds. A day is 24 hours, or 86,400 seconds, ignoring leap seconds.
To convert Weeks to Days, multiply the value in wk by 7. For example, 10 wk × 7 = 70 d. This works because the ratio between the two units is constant for every value in time.
Worked examples
| wk | d |
|---|---|
| 1 wk | 7 d |
| 2.5 wk | 17.5 d |
| 5 wk | 35 d |
| 10 wk | 70 d |
| 25 wk | 175 d |
| 50 wk | 350 d |
| 100 wk | 700 d |
Reverse conversion
| d | wk |
|---|---|
| 1 d | 0.14285714 wk |
| 5 d | 0.71428571 wk |
| 10 d | 1.428571 wk |
| 25 d | 3.571429 wk |
| 50 d | 7.142857 wk |
| 100 d | 14.285714 wk |
When this conversion is useful
This is the calculation you need when you are planning a project, a sprint or a schedule and need consistent units. Because the factor is fixed, you can use the same number for a single measurement or for a batch: 1,000 wk is 7,000 d.
Is the conversion exact?
Seconds, minutes, hours, days and weeks are exact. Months and years here use average Julian values (30.4375 days and 365.25 days), so a calendar conversion can differ slightly.
Reference: BIPM SI Brochure and NIST SP 811. Last reviewed: 2026-11-01.
wk to d conversion chart
The chart lists the most requested values. For a value that is not here, use the converter at the top of the page.
| 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 |
| 7 wk | 49 d |
| 8 wk | 56 d |
| 9 wk | 63 d |
| 10 wk | 70 d |
| 11 wk | 77 d |
| 12 wk | 84 d |
| 13 wk | 91 d |
| 14 wk | 98 d |
| 15 wk | 105 d |
| 16 wk | 112 d |
| 17 wk | 119 d |
| 18 wk | 126 d |
| 19 wk | 133 d |
| 20 wk | 140 d |
| 21 wk | 147 d |
| 22 wk | 154 d |
| 23 wk | 161 d |
| 24 wk | 168 d |
| 25 wk | 175 d |
| 26 wk | 182 d |
| 27 wk | 189 d |
| 28 wk | 196 d |
| 29 wk | 203 d |
| 30 wk | 210 d |
| 31 wk | 217 d |
| 32 wk | 224 d |
| 33 wk | 231 d |
| 34 wk | 238 d |
| 35 wk | 245 d |
| 36 wk | 252 d |
| 37 wk | 259 d |
| 38 wk | 266 d |
| 39 wk | 273 d |
| 40 wk | 280 d |
| 41 wk | 287 d |
| 42 wk | 294 d |
| 43 wk | 301 d |
| 44 wk | 308 d |
| 45 wk | 315 d |
| 46 wk | 322 d |
| 47 wk | 329 d |
| 48 wk | 336 d |
| 49 wk | 343 d |
| 50 wk | 350 d |
| 60 wk | 420 d |
| 70 wk | 490 d |
| 80 wk | 560 d |
| 90 wk | 630 d |
| 100 wk | 700 d |
Frequently asked questions
How many Days are in 1 Weeks?
1 wk equals 7 d.
How do I convert Weeks to Days?
Multiply the wk value by 7. Example: 25 wk = 175 d.
What is 2.5 wk in d?
2.5 wk = 17.5 d.
Is the wk to d conversion exact?
Seconds, minutes, hours, days and weeks are exact. Months and years here use average Julian values (30.4375 days and 365.25 days), so a calendar conversion can differ slightly.
Does the calculator work offline?
Yes. The conversion runs in your browser with JavaScript, so it works after the page has loaded, even without a connection.