Weeks to Days Calculator — Convert Weeks into Days
Convert weeks to days instantly with our free online calculator. Plan EI maternity leave, tenancy notices, sprint schedules, and construction season projects with exact week-to-day results.
Time Conversion CalculatorThe quick answer for 1 Weeks — type any value below for the exact result
Weeks
Days
Weeks to Days Conversion Formula
To convert weeks to days, multiply the number of weeks by 7. The conversion is exact and based on the standard definition: 1 week = 7 days = 168 hours.
Weeks and Days Explained
Weeks (week)
A week (wk) is 7 days, or 168 hours — the rhythm unit of modern work and life. Project roadmaps, sprint cadences, training blocks, and treatment courses are all scoped in weeks because the 7-day cycle aligns with rest days and standup routines. Converting weeks to days multiplies by 7 exactly, giving 105 days for 15 weeks of EI maternity benefits or 280 days for a 40-week pregnancy without any month-length guesswork.
Where it is used: Weeks are the planning unit for software sprints, construction phases, university terms, fitness programs, EI benefit durations, and notice periods across Canada.
Origin: The 7-day week spread from ancient Babylonian astronomy (the seven visible wandering lights) through Jewish and Christian practice into the Roman calendar, and ISO 8601 later standardized it for international business — including Canada's Monday-to-Friday work week.
Days (d)
A day (d) is exactly 86,400 seconds, or one twenty-fourth of a week's 168 hours. Days are the unit that deadlines, permits, prescriptions, and legal clauses count in, so week-based plans must become day counts before they hit paper. One week is 7 days, so 8 weeks of tenancy notice under provincial landlord-tenant law is a 56-day clock and a 12-week program is 84 calendar days — conversions that stay exact because the week never varies.
Where it is used: Days are the counting unit for statutory deadlines, medical courses, insurer authorization windows, and any duration that must map onto a specific calendar date.
Origin: The day is the oldest time standard, tied to Earth's rotation; the SI definition fixes it at exactly 86,400 seconds, which keeps week-to-day math a clean ×7.
Weeks to Days Conversion Table
| Weeks (week) | Days (d) |
|---|---|
| 0.5 week | 3.5 d |
| 1 week | 7 d |
| 1.5 week | 10.5 d |
| 2 week | 14 d |
| 2.5 week | 17.5 d |
| 3 week | 21 d |
| 4 week | 28 d |
| 5 week | 35 d |
| 6 week | 42 d |
| 8 week | 56 d |
| 10 week | 70 d |
| 12 week | 84 d |
| 16 week | 112 d |
| 20 week | 140 d |
| 26 week | 182 d |
| 36 week | 252 d |
| 52 week | 364 d |
Days to Weeks Conversion Table
| Days (d) | Weeks (week) |
|---|---|
| 1 d | 0.1428571429 week |
| 2 d | 0.2857142857 week |
| 3 d | 0.4285714286 week |
| 5 d | 0.7142857143 week |
| 7 d | 1 week |
| 10 d | 1.4285714286 week |
| 14 d | 2 week |
| 21 d | 3 week |
| 28 d | 4 week |
| 30 d | 4.2857142857 week |
| 60 d | 8.5714285714 week |
| 90 d | 12.8571428571 week |
| 100 d | 14.2857142857 week |
| 365 d | 52.1428571429 week |
Weeks to Days in Everyday Objects
Common real-world examples that make Weeks and Days easy to picture at a glance.
| Weeks (week) | Days (d) | |
|---|---|---|
| An Agile development sprint | 2 week | 14 d |
| A common antibiotics course | 1 week | 7 d |
| A tenancy notice period under provincial landlord-tenant law | 4 week | 28 d |
| A Toronto Waterfront Marathon training plan | 16 week | 112 d |
| A Canadian university semester | 15 week | 105 d |
| A new-job probation period | 12 week | 84 d |
When You Need Weeks to Days Conversions
Construction Season Scheduling
A contractor quoting a 6-week build-out is committing to 42 calendar days — the number the building permit, penalty clause, and holdback schedule actually enforce, all packed into Canada's short construction season.
Sprint and Release Planning
A two-week Scrum sprint is exactly 14 days, so a 10-sprint roadmap is a 140-day delivery window — the figure product managers from Kitchener-Waterloo to Vancouver put on the release calendar.
Marathon Training Blocks
Novice plans for the Toronto Waterfront Marathon or Ottawa Race Weekend run 16 weeks = 112 days, with long runs plotted against that day count; an injury in week 9 still leaves 49 days to adapt the plan.
Physiotherapy Treatment Courses
A 12-week physiotherapy protocol after knee surgery equals 84 days of sessions, which must fit inside a private-insurer authorization window that counts calendar days, not attendance.
Related Time Conversions
How to Use
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1
Enter Weeks
Type the week value you want to convert — typical entries include sprint lengths (1-4 weeks), EI maternity benefit weeks (15), parental leave portions (12-35 weeks), and tenancy notice periods (2-12 weeks)
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2
View Days
The equivalent days appear instantly. For example, 15 weeks of EI maternity benefits converts to 105 days
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3
Copy or Swap
Copy the result or click Swap to convert days back to weeks
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4
Use the Table
Check the conversion table for common planning values — useful for lease deadlines, benefit windows, and construction season schedules
Why Use Be Converter?
Instant Conversion
Get precise week-to-day results in real time as you type — supports fractional values like 2.5 weeks = 17.5 days
Exact Conversion
Uses the universal 7-day week — no month-length guesswork, no rounding errors, whether you're in St. John's or Victoria
Conversion Table
Quick reference with common values like 2 weeks (14 days), 6 weeks (42 days), 15 weeks (105 days — full EI maternity benefits), and 40 weeks (280 days)
Bidirectional
Easily swap between weeks and days with one click for reverse conversions
Free & No Signup
No registration required. Unlimited conversions. Completely free from coast to coast to coast
Privacy First
All calculations happen in your browser. No data is sent to any server
Frequently Asked Questions
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About Weeks to Days Converter
Our free online weeks to days calculator turns week-based plans into the calendar-day counts that deadlines, permits, and benefit rules actually use. Whether you are checking that your 15 weeks of EI maternity benefits mean 105 days, that a 6-week construction season project means 42 days, that a 12-week physiotherapy protocol is 84 days of sessions, or that a 40-week pregnancy is 280 days, this tool gives exact results instantly. The math is a clean multiplication by 7 — no month-length ambiguity — and the calculator handles whole and fractional weeks alike, with a swap button for the reverse direction.
Expert Tips for Weeks to Days Conversion
Contracts count calendar days, crews speak in weeks: a "6-week build" is a 42-day commitment once your municipality's permit clock starts, so convert before signing — the Canadian construction season is short enough as it is
EI math: maternity benefits are capped at 15 weeks = 105 days, and standard parental benefits add up to 35 weeks = 245 days — knowing the day counts helps you plan a realistic return-to-work date
Scrum cadence math: one 2-week sprint = 14 days, so a 10-sprint roadmap is a 140-day release window stakeholders from the Toronto-Waterloo corridor to Vancouver can put on a calendar
Fitness plans are week-written but day-executed: a 16-week plan for the 42.2 km Toronto Waterfront Marathon is 112 daily entries — through a Prairie winter, that's a lot of treadmill sessions; missing 2 weeks leaves 98 days, not "most of it"
Many group benefits plans use a 26-week (182-day) elimination period before long-term disability begins; claim paperwork usually asks for the day count, not the week count