Week to Second (wk to s)
Result
604,800 Second
Formula
s = wk × 604,800
1 wk = 604,800 s, and 1 s = 0.000001653439 wk.
The second is the SI base unit, defined by a caesium-133 transition frequency. Minutes, hours, days and weeks are exact multiples. Month and year here are Gregorian averages: a year of 365.2425 days and a month of one twelfth of that (30.436875 days).
Worked examples
- 1 wk × 604,800 = 604,800 s
- 10 wk × 604,800 = 6,048,000 s
- 100 wk × 604,800 = 60,480,000 s
Common mistakes
- Calendar months run from 28 to 31 days, so "3 months" from a given date is not 3 × 30.44 days. Use a date calculator for deadlines.
- A 365-day year, a 365.25-day Julian year and the 365.2425-day Gregorian year differ; interest and astronomy calculations specify which one they use.
Week to Second table
| Week (wk) | Second (s) |
|---|---|
| 1 | 604,800 |
| 2 | 1,209,600 |
| 5 | 3,024,000 |
| 10 | 6,048,000 |
| 20 | 12,096,000 |
| 50 | 30,240,000 |
| 100 | 60,480,000 |
| 1,000 | 604,800,000 |
The units
- Week (wk)
- 1 Week = 604,800 Second.
- Second (s)
- A unit of time.
Sources for these factors
- The International System of Units (SI Brochure), 9th edition — BIPM
- Guide for the Use of the International System of Units (SP 811), Appendix B: conversion factors — NIST
Last reviewed against these sources. An automated check recomputes every factor from its definition on each build. How we check accuracy