Day to Week Converter
Convert Day (d) to Week (wk) instantly. 1 d = 0.142857 wk.
Time Converter
21 units available
1 d = 0.142857 wk
Formula:
wk = d × 0.1428571429With your value: 1 d = 0.14285714 wk
How big is that?
Everyday references on a logarithmic scale, all expressed in day so you can sanity-check the result.
Other Day to Week conversions
Day to Week Conversion Table
| Day (d) | Week (wk) |
|---|---|
| 0.5 | 0.071429 |
| 1 | 0.142857 |
| 2 | 0.285714 |
| 5 | 0.714286 |
| 10 | 1.428571 |
| 15 | 2.142857 |
| 20 | 2.857143 |
| 25 | 3.571429 |
| 50 | 7.142857 |
| 100 | 14.285714 |
| 250 | 35.714286 |
| 500 | 71.428571 |
| 1000 | 142.857143 |
Week to Day Conversion Table
| Week (wk) | Day (d) |
|---|---|
| 0.5 | 3.5 |
| 1 | 7 |
| 2 | 14 |
| 5 | 35 |
| 10 | 70 |
| 15 | 105 |
| 20 | 140 |
| 25 | 175 |
| 50 | 350 |
| 100 | 700 |
| 250 | 1,750 |
| 500 | 3,500 |
| 1000 | 7,000 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Day (d)
Time
Traceable to the second, defined by fixing the caesium-133 hyperfine transition frequency at 9 192 631 770 Hz.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Week (wk)
Time
Traceable to the second, defined by fixing the caesium-133 hyperfine transition frequency at 9 192 631 770 Hz.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Day to Week
To convert from Day (d) to Week (wk), multiply the value by 0.1428571429.
Formula: wk = d × 0.1428571429
Reverse: d = wk × 7
Step-by-Step Example
- Start with your value in Day. For example: 5 d
- Multiply by the conversion factor: 5 x 0.1428571429
- The result is: 0.714286 wk
About Day
The day (d) is a unit of time. One day equals 86400 seconds. UnitConvertLab converts it against every other time unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: time calculations, engineering and science, education.
About Week
The week (wk) is a unit of time. One week equals 604800 seconds. UnitConvertLab converts it against every other time unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: time calculations, engineering and science, education.
Frequently Asked Questions
How many Week are in 1 Day?
There are exactly 0.1428571429 Week in 1 Day. This means the conversion factor from Day to Week is 0.1428571429.
What is the formula to convert Day to Week?
The formula to convert Day to Week is: wk = d × 0.1428571429. For example, to convert 10 Day to Week, you would multiply 10 by 0.1428571429.
What is a Day?
The day (d) is a unit of time. One day equals 86400 seconds. UnitConvertLab converts it against every other time unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What is a Week?
The week (wk) is a unit of time. One week equals 604800 seconds. UnitConvertLab converts it against every other time unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Day?
The Day is commonly used in time calculations, engineering and science, education.
Related Time Conversions
Cite this page
UnitConvertLab. (2026). Day to Week converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/day-to-week