Weeks to Days Converter
Convert weeks to days instantly with this free weeks to days converter. Enter any value to get an accurate time conversion, plus the formula, the conversion factor and a full reference table.
What is 1 week in days?
1 week is equal to exactly 7 days.
1 × 7 = 7 days
Result
1 week = 7 days
Weeks to Days formula
d = wk × 7
The weeks to days conversion factor is 7, which is exact by definition. 1 week = 7 days, and 1 day = 0.142857142857 weeks.
Worked examples
- 2 weeks = 14 days — 2 × 7 = 14 days
- 30 weeks = 210 days — 30 × 7 = 210 days
- 100 weeks = 700 days — 100 × 7 = 700 days
Weeks to Days conversion table
Every value below is calculated with the exact conversion factor and rounded for display.
| Weeks (wk) | Days (d) |
|---|---|
| 1 wk | 7 d |
| 2 wk | 14 d |
| 5 wk | 35 d |
| 10 wk | 70 d |
| 15 wk | 105 d |
| 30 wk | 210 d |
| 45 wk | 315 d |
| 60 wk | 420 d |
| 90 wk | 630 d |
| 100 wk | 700 d |
| 365 wk | 2,555 d |
| 1,000 wk | 7,000 d |
When you need to convert weeks to days
- Converting durations in project plans, billing sheets and race results.
- Setting timeouts, cache lifetimes and cron intervals in software.
Common mistakes to avoid
- Dividing when you should multiply. Because 1 week = 7 days, the answer should be larger than the number you started with.
- Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.
How precise does the answer need to be?
Round only at the end, and only to the precision your task actually needs. The converter above keeps full double precision internally and rounds for display.
How these units are defined
- Week (wk): Seven days. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
- Day (d): 24 hours. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
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Frequently asked questions
- What is 1 week in days?
- 1 week is equal to 7 days.
- How many weeks are in one day?
- There are 0.142857143 weeks in 1 day.
- How do you convert weeks to days?
- Multiply the number of weeks by 7 — or use the formula d = wk × 7.
- What is 30 weeks in days?
- 30 weeks is 210 days. 30 × 7 = 210 days.
- Is the weeks to days conversion exact?
- Yes. The relationship is fixed by definition, so 7 is an exact conversion factor — only the displayed result is rounded.