Convert days to weeks
Enter a value in days to convert it to weeks.
days to weeks reference
| days | weeks |
|---|---|
| 1 d | 0.1429 wk |
| 2 d | 0.2857 wk |
| 5 d | 0.7143 wk |
| 10 d | 1.4286 wk |
| 25 d | 3.5714 wk |
| 50 d | 7.1429 wk |
| 100 d | 14.2857 wk |
The conversion factor
One day is 0.14285714 weeks. So to convert, multiply your figure in days by 0.14285714. To go the other way, multiply weeks by 7, or use the weeks to days converter.
Doing it in your head
For a quick estimate, round the factor: roughly "divide by 7". Use the exact converter above when the number matters.
Where this conversion comes up
Durations in code and spreadsheets, timeouts, and project estimates.
See the common unit conversions cheat sheet for the factors worth memorising.
Related tools
Frequently asked questions
How many weeks are in a day?
1 day = 0.142857 weeks.
What is the formula to convert days to weeks?
Multiply the number of days by 0.14285714. To go back the other way, multiply weeks by 7.
What is 10 days in weeks?
10 days = 1.4286 weeks. The reference table below lists more common values.
Is this converter accurate?
It uses the internationally defined conversion factors and computes at full floating-point precision, then rounds only the displayed result. For everyday purposes it is exact; for legal, engineering or scientific work, confirm the required number of significant figures.
Does it work offline?
Yes. The conversion runs in your browser with no server call, so it keeps working with no connection, and nothing you enter is uploaded.
Last reviewed: September 2026. Figures and formulas are checked against their published sources; see the site's data notes.