Weeks to Days Converter
Convert Weeks to Days with the exact conversion factor, a worked example and a quick-reference table. Runs entirely in your browser.
This converter turns Weeks into Days instantly using the standard definition of both units. It includes the formula, a worked example, and a quick table for common amounts, and it works for any value you type — including decimals and negatives where they make sense.
Quick reference — Weeks to Days
How to use this calculator
- Enter the value in Weeks in the input box.
- Read the result in Days — it updates as you type.
- Use the Swap button to convert in the opposite direction.
- Check the quick-reference table for common Weeks amounts.
The formula
Days = Weeks × 7
Worked example
4 wk = 28 d — in full, 4 Weeks converts to 28 Days. Timers, schedules and project estimates are the everyday jobs for this conversion.
Frequently Asked Questions
How do I convert Weeks to Days?
Multiply the value in Weeks by 7. For example, 4 Weeks × 7 = 28 Days. To go the other way, divide by 7 instead — or press Swap in the converter above.
How many Days are in one Week?
One Week equals 7 Days. Scaling up, 10 Weeks = 70 Days and 100 Weeks = 700 Days. The converter uses the full-precision factor, so typed values are more precise than the rounded figure quoted here.
Which is bigger, a Week or a Day?
A Week is bigger. One Week equals 7 Days, while one Day is only 0.142857 Weeks. So a measurement that looks larger in Days is reflecting the scale difference, not an error.
What is 4 Weeks in Days?
4 Weeks is 28 Days. The math is 4 × 7 = 28. Try any other amount in the converter above and the result updates as you type.