How do I convert weeks to seconds?

Multiply the week value by 604800. So x wk × 604800 = the equivalent in s.

What is 5 weeks in seconds?

5 weeks equals 3024000 seconds.

What is 10 weeks in seconds?

10 weeks equals 6048000 seconds.

What is 100 weeks in seconds?

100 weeks equals 60480000 seconds.

How do I convert back from seconds to weeks?

Multiply the second value by 1.6534 × 10^−6. For example, 1 s = 1.6534 × 10^−6 wk.

Is the week bigger than the second?

Yes. 1 week is larger than 1 second — specifically 604800 times larger.

Are these conversion factors exact?

Yes. The factor of 604800 is derived directly from the SI definitions of week and second.

Weeks to Seconds Converter

1 wk = 604800 s

1 week equals 604800 seconds. To convert weeks to seconds, multiply the week value by 604800. For quick reference: 1 wk = 604800 s, 5 wk = 3024000 s, 10 wk = 6048000 s, 100 wk = 60480000 s.

From

604800

FormulaSeconds = Weeks × 604800

Quick

How to convert weeks to seconds

Take your value
Start with your value in weeks.
Multiply by 604800
Multiply the week value by 604800. This is the exact conversion factor from weeks to seconds.
Read the result
The product is your value in seconds. For example, 5 wk × 604800 = 3024000 s.

Conversion formula

The exact factor from weeks to seconds is 604800.

Seconds = Weeks × 604800

Weeks to Seconds conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from weeks to seconds
Weeks (wk)	Seconds (s)
1 wk	604800 s
2 wk	1209600 s
3 wk	1814400 s
4 wk	2419200 s
5 wk	3024000 s
6 wk	3628800 s
7 wk	4233600 s
8 wk	4838400 s
9 wk	5443200 s
10 wk	6048000 s
15 wk	9072000 s
20 wk	12096000 s
25 wk	15120000 s
30 wk	18144000 s
45 wk	27216000 s
60 wk	36288000 s
90 wk	54432000 s
100 wk	60480000 s
120 wk	72576000 s
150 wk	90720000 s
180 wk	108864000 s
240 wk	145152000 s
300 wk	181440000 s
360 wk	217728000 s
450 wk	272160000 s
500 wk	302400000 s
600 wk	362880000 s
750 wk	453600000 s
900 wk	544320000 s
1000 wk	604800000 s
1200 wk	725760000 s
1500 wk	907200000 s
1800 wk	1088640000 s
2400 wk	1451520000 s
3000 wk	1814400000 s
3600 wk	2177280000 s
4500 wk	2721600000 s
6000 wk	3628800000 s
7200 wk	4354560000 s
9000 wk	5443200000 s
10000 wk	6048000000 s
18000 wk	10886400000 s
36000 wk	21772800000 s
43200 wk	26127360000 s
86400 wk	52254720000 s
172800 wk	104509440000 s
604800 wk	365783040000 s
1000000 wk	604800000000 s
31557600 wk	19086036480000 s
100000000 wk	60480000000000 s

Real-world reference

A standard work week is 5 working days within 1 wk. Most pregnancy stages are tracked in weeks. In seconds, that gives you: 1 wk = 604800 s, 10 wk = 6048000 s, 100 wk = 60480000 s.

Frequently asked questions

How many seconds are in 1 week?: 1 week equals 604800 seconds.
How do I convert weeks to seconds?: Multiply the week value by 604800. So x wk × 604800 = the equivalent in s.
What is 5 weeks in seconds?: 5 weeks equals 3024000 seconds.
What is 10 weeks in seconds?: 10 weeks equals 6048000 seconds.
What is 100 weeks in seconds?: 100 weeks equals 60480000 seconds.
How do I convert back from seconds to weeks?: Multiply the second value by 1.6534 × 10^−6. For example, 1 s = 1.6534 × 10^−6 wk.
Is the week bigger than the second?: Yes. 1 week is larger than 1 second — specifically 604800 times larger.
Are these conversion factors exact?: Yes. The factor of 604800 is derived directly from the SI definitions of week and second.

About the week and the second

The week

The week (wk) equals exactly 7 days, or 604,800 seconds. It is universally used as a planning unit across cultures even though it has no astronomical basis — its origin is religious and cultural, traced back to ancient Babylonian, Jewish, and Roman traditions.

The second

The second (s) is the SI base unit of time. It has been defined since 1967 in terms of the cesium-133 atomic transition, specifically as 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom.