Convert Weeks to Days
Convert Weeks to Days instantly. 1 Week (wk) equals 7 Days (d).
Weeks to Days conversion table
| Weeks (wk) | Days (d) |
|---|---|
| 1 wk | 7 d |
| 2 wk | 14 d |
| 3 wk | 21 d |
| 5 wk | 35 d |
| 10 wk | 70 d |
| 20 wk | 140 d |
| 50 wk | 350 d |
| 100 wk | 700 d |
| 500 wk | 3,500 d |
| 1,000 wk | 7,000 d |
1 Week = 7 Days · multiply Weeks by 7
About converting Weeks to Days
Weeks (wk) and Days (d) are both units of time, so converting between them is a single multiplication: multiply your Weeks figure by 7. Ten Weeks comes to 70 Days, and a hundred works out at 700 Days.
Rule of thumb: going from Weeks to Days multiplies, so the figure always grows — one Week is already 7 Days. If your answer came out smaller, you have the conversion the wrong way round.
What is a Week?
The week is the odd one out among common time units: the day, the month and the year all have something astronomical behind them, but seven days answers to nothing in the sky. It is a cultural and religious convention that happened to spread worldwide, and it divides evenly into neither a month nor a year, which is why calendars never repeat neatly. Because businesses still need to agree on what "week 32" means, ISO 8601 defines a week-numbering system: weeks start on Monday, and week 1 is the one containing the first Thursday of the year.
What is a Day?
A day is exactly 86,400 seconds — and that is a statement about the unit, not about the Earth. A real solar day varies slightly depending on winds, tides and what the planet’s core is doing, and tidal friction is gradually lengthening it. The gap between the tidy unit and the untidy planet is what leap seconds patch over. Astronomers also distinguish the solar day from the sidereal day, one full rotation relative to the stars, which is about four minutes shorter because the Earth has meanwhile moved along its orbit.
To put both in perspective: a week is the gap between one Monday and the next, while a day is one turn of the Earth on its axis.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Days to Weeks converter, or browse all Time converters.
Frequently asked questions
How many Days are in one Week?
There are 7 Days in one Week.
How do I convert Weeks to Days?
Multiply the number of Weeks by 7. For example, 10 Weeks = 70 Days.
What is 100 Weeks in Days?
100 Weeks is equal to 700 Days.
How do I convert Days to Weeks?
Multiply the Days value by 0.1429 (or divide by 7).
Is this Weeks to Days conversion exact?
Yes, exactly. Both units are fixed against the same base by definition, and 1 Week = 7 Days is the complete value — nothing is rounded away.
What is a Week?
The week is the odd one out among common time units: the day, the month and the year all have something astronomical behind them, but seven days answers to nothing in the sky. It is a cultural and religious convention that happened to spread worldwide, and it divides evenly into neither a month nor a year, which is why calendars never repeat neatly. Because businesses still need to agree on what "week 32" means, ISO 8601 defines a week-numbering system: weeks start on Monday, and week 1 is the one containing the first Thursday of the year.
What is a Day?
A day is exactly 86,400 seconds — and that is a statement about the unit, not about the Earth. A real solar day varies slightly depending on winds, tides and what the planet’s core is doing, and tidal friction is gradually lengthening it. The gap between the tidy unit and the untidy planet is what leap seconds patch over. Astronomers also distinguish the solar day from the sidereal day, one full rotation relative to the stars, which is about four minutes shorter because the Earth has meanwhile moved along its orbit.