Weeks to days
This converter turns any number of weeks into days, and back again, using the exact and unchanging rule that 1 week = 7 days. It is useful for planning notice periods, sprint lengths, pregnancy milestones, or any schedule quoted in weeks that you need to express in days.
How it works
Converting weeks to days simply multiplies by 7:
days = weeks × 7
Press Swap and the tool divides instead, turning days back into weeks (including fractional results):
weeks = days ÷ 7
Because a week is always exactly seven days, the conversion is precise with no rounding or calendar quirks. Type a value and the result updates instantly.
| Weeks | Days |
|---|---|
| 1 | 7 |
| 2 | 14 |
| 4 | 28 |
| 6 | 42 |
| 12 | 84 |
Example
To find how many days are in 3.5 weeks, multiply 3.5 × 7 = 24.5 days. Going the other way, 100 days ÷ 7 ≈ 14.29 weeks.
Everything is calculated locally in your browser — nothing is uploaded.