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Convert Weeks to Seconds

1 week is 604,800 s. One week is exactly 604800 seconds.

One week is 604800 seconds. To convert weeks to seconds, multiply by 604800; to go the other way, divide by 604800 or multiply by 1.6534 × 10^-6. The factor is exact rather than rounded: it follows from BIPM SI Brochure. Seven days, exactly 604,800 seconds.

Factor checked against the defining standard · How we check

Seconds
604,800 s
Weeks × 604800
value * 604800604,800 s

1 week in every time unit

UnitValueExact factor
seconds604,800 s× 604,800
minutes10,080 min× 10,080
hours168 h× 168
days7 d× 7
weeks (as entered)1 wk
months0.2299841886 mo× 0.229984188587
years0.01916534905 yr× 0.0191653490489

Factors are entered by hand from BIPM SI Brochure rather than derived from a units library, so the ones that terminate are exact rather than rounded.

How do you convert weeks to seconds?

  1. 1.Take the measurement in weeks.
  2. 2.Multiply by 604800 — that is how many seconds fit in one week.
  3. 3.To go back the other way, divide by 604800, or multiply by 1.6534 × 10^-6.

Weeks to seconds conversion table

WeeksSeconds
1 wk604,800 s
2 wk1,209,600 s
3 wk1,814,400 s
4 wk2,419,200 s
5 wk3,024,000 s
6 wk3,628,800 s
7 wk4,233,600 s
8 wk4,838,400 s
9 wk5,443,200 s
10 wk6,048,000 s
12 wk7,257,600 s
15 wk9,072,000 s
20 wk12,096,000 s
25 wk15,120,000 s
50 wk30,240,000 s
100 wk60,480,000 s

What are weeks and seconds?

Week (wk)
Seven days, exactly 604,800 seconds. The only common unit of time with no astronomical basis at all.
Second (s)
The SI base unit of time, fixed since 1967 by the caesium-133 hyperfine transition frequency of 9,192,631,770 Hz.

Source: BIPM SI Brochure — the second, and units accepted for use with the SI

Questions people actually ask

How many seconds are in a week?
604800. The SI base unit of time, fixed since 1967 by the caesium-133 hyperfine transition frequency of 9,192,631,770 Hz.
How do I convert seconds back to weeks?
Divide by 604800, or multiply by 1.6534 × 10^-6 — they are the same operation.

Other time conversions

Seconds to weeks — the same conversion the other way.

Calculators that work in time