Week to Hour Converter

1 week equals 168 hours because it's calculated as 7 days × 24 hours per day. This is a standard definition that has been internationally accepted for centuries.

The 7-day week has ancient origins, while the 24-hour day comes from the Egyptian civilization's division of daytime and nighttime into 12 parts each. This combination gives us the 168-hour week that's universally used in modern calendars and scheduling.

Converting weeks to hours is useful in many practical situations:

• Project planning: Determining total work hours needed for multi-week projects
• Employee scheduling: Calculating total hours for work rotations spanning weeks
• Service contracts: Converting weekly service agreements to hourly rates
• Fitness goals: Tracking exercise hours over several weeks
• Media planning: Calculating total airtime or streaming hours for weekly programs
• Billing calculations: Converting weekly rates to hourly costs for partial weeks
• Event planning: Scheduling activities across multiple weeks with hourly precision

The conversion between weeks and hours is mathematically exact: 1 week = 168 hours (7 days × 24 hours). This is a defined relationship rather than a measurement, so it's 100% accurate.

Unlike calendar months or years (which vary in length), weeks and hours have fixed durations. This makes week-to-hour conversions completely reliable for planning purposes.

The only potential for variation comes when dealing with partial weeks or hours, which is why this converter allows you to select different levels of decimal precision (0-4 decimal places) to match your specific needs.

Weeks are not part of the International System of Units (SI) because they're based on cultural and historical traditions rather than scientific measurements. The 7-day week has ancient origins, possibly linked to lunar cycles and early astronomical observations.

The metric system (SI) focuses on units that are decimal-based and derived from physical constants. Time is a special case in the SI system: while seconds are the base unit (defined by atomic vibrations), larger time units like minutes, hours, and days are accepted for use with SI despite not being decimal-based.

Weeks are considered a "non-SI unit accepted for use with the SI" in some contexts, primarily because of their widespread cultural and practical usage in calendars and scheduling worldwide.

To convert weeks to working hours (excluding weekends and holidays), you'll need to know the standard workweek hours for your context:

1. Determine the standard working hours per week (e.g., 40 hours for a typical full-time workweek)
2. Multiply the number of weeks by the standard working hours per week
3. Adjust for any holidays or planned time off within the period

Example: For a 40-hour workweek, 3 weeks would equal 120 working hours (3 × 40). This is different from calendar hours, which would be 504 hours (3 × 168) for the same period.

Note that working hours vary globally - common standards include 35-40 hours per week in most countries, but this can range from 30-48 hours depending on local labor laws and industry practices.