quick homework checksshopping and product comparisonstravel planningprofessional estimatesDIY and household measurementsgeneral reference
Sources and Accuracy
Time conversions use second as the reference unit. Calendar-style values such as average month and average Gregorian year are approximate by definition.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
week [wk]
Definition
The week is a calendar time unit equal to 7 days.
History
Seven-day weeks have long calendar and cultural use and are now common worldwide.
Current use
Weeks are used for work schedules, pregnancy tracking, planning cycles, subscriptions, and project timelines.
minute [min]
Definition
The minute is a time unit equal to 60 seconds.
History
Minutes come from sexagesimal timekeeping, where hours are divided into 60 parts.
Current use
Minutes are used for schedules, cooking, travel, workouts, calls, meetings, and timing tasks.