Weeks to Seconds Converter
Enter the time in weeks below to convert it to seconds.
Convert Weeks to Seconds
Enter a value in weeks (wk) to convert to seconds (s).
Week to Second Conversion Table
Table showing various week measurements converted to seconds. Click any preset value or arrow to load it into the converter.
How to Convert Weeks to Seconds
To convert weeks to seconds, multiply the time by the following conversion ratio: 604,800 seconds/week.
Since one week is equal to 604,800 seconds, you can use this simple formula to convert:
The time in seconds is equal to the time in weeks multiplied by 604,800.
For example, here's how to convert 5 weeks to seconds using the formula above.
How Many Seconds Are in a Week?
There are 604,800 seconds in a week, which is why we use this value in the formula above.
Our week to second calculator automatically converts your time measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Weeks and seconds are both units used to measure time. Keep reading to learn more about each unit.
What Is a Week?
A week is a unit of time equal to 604,800 seconds (s), the base unit for time. Equal to 7 days or 168 hours. [1]
The week is classified as a standard unit of time. Weeks can be abbreviated as wk; for example, 1 week can be written as 1 wk.
When working with weeks (wk) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, weeks (wk) are widely used across large-scale industrial, bulk, and macro-level time specifications within international standard workflows, engineering documentation, and technical data sheets.
What Is a Second?
Base SI unit of time. It serves as a primary reference unit for measuring time across scientific and practical applications. [2]
The second is classified as an International System of Units (SI) unit of time. Seconds can be abbreviated as s; for example, 1 second can be written as 1 s.
As the primary coherent reference unit for time in this category, all other time units are mathematically anchored to the second (s).
In practice, seconds (s) are widely used across standard time applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting time between weeks (wk) and seconds (s), keep full floating-point precision (1 wk = 604,800 s; 1 s = 0.000001653 wk) during intermediate calculations and round only the final second figure to match your instrument tolerance.
More Week & Second Conversions
Need to calculate in the opposite direction? Use our seconds to weeks calculator to switch your starting unit immediately. You can also explore related tools such as converting seconds to weeks, converting milliseconds to seconds, or converting days to seconds.
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Time)·Time Metrology Standard — Weeks (wk) to Seconds (s)
- [2]BIPM SpecificationBIPM (SI Base Unit: Second (s))·Unit Specifications: Week (wk) & Second (s)
- [3]NIST CUU ReferenceNIST CUU (Non-SI Units Accepted for Use (min, h, d))·Conversion Factors & Mathematical Basis (wk to s)