Weeks to Days Converter
Convert weeks to days, or switch to convert a number of days into weeks. Type whole or decimal weeks, a fraction, or weeks:days notation such as 2:3 for two weeks and three days. The result appears in days, as weeks and remaining days, and in hours, with a table of common values.
- Runs in your browser
- No sign-up
- Free to use
Decimal (2.5), fraction (1/2) or weeks:days (2:3).
How to use Weeks to Days Converter
- Type a number of weeks, such as 6 or 2:3.
- Read the days and the breakdown.
- Press the direction button to convert days to weeks.
- Copy the result or use the table.
Weeks to Days Converter features
Both directions
Weeks to days and days to weeks.
weeks:days input
Type 2:3 for two weeks and three days.
Weeks and days
Days shown as full weeks plus the remainder.
Other units
Hours and minutes alongside.
Reference table
Common values including 13, 26 and 52 weeks.
Shows the formula
days = weeks × 7.
When to use Weeks to Days Converter
- Converting notice periods and leave allowances.
- Counting pregnancy weeks and days.
- Planning project sprints and schedules.
- Converting delivery or shipping times.
Weeks to Days Converter FAQ
How many days are in a week?
Seven. Multiply weeks by 7 for days; divide days by 7 for weeks.
How many weeks are in a year?
52 weeks and 1 day in a common year, 52 weeks and 2 days in a leap year.
How many weeks is 100 days?
14 weeks and 2 days, or about 14.29 weeks.
How many days is 2.5 weeks?
17.5 days.
Are working weeks different?
A working week has five working days in many countries. This converter uses calendar weeks of seven days; for working days use the Business Days Calculator.
How are pregnancy weeks written?
Often as weeks+days, for example 20+3. Type 20:3 to convert that to days.
The seven-day week
The seven-day week is the one unit of time not tied to the movement of the sun, moon or earth: it comes from tradition, and it has been remarkably stable. Because a week is always exactly seven days, converting between them is simple multiplication and division.
The interesting part is the remainder. Durations in days are often easiest to understand as weeks plus days, such as 45 days as 6 weeks and 3 days. Medicine, construction schedules and legal notice periods all use that form, which is why the converter shows it next to the decimal result.
Weeks do not divide evenly into months or years. A year is 52 weeks and one or two days, and a month is about 4.35 weeks. Periods stated in months should be converted with a calendar, which the Months to Days Calculator does.
Be careful with working weeks. “Two weeks’ notice” usually means fourteen calendar days, but “ten working days” excludes weekends. When the distinction matters, check the definition in the relevant contract or rule.