Seconds to Centuries Conversion

Enter the time in seconds below to get the value converted to centuries.

Results in Centuries:
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1 sec = 3.1689E-10 centuries
Hint: use a scientific notation calculator to convert E notation to decimal

How to Convert Seconds to Centuries

To convert a second measurement to a century measurement, divide the time by the conversion ratio.

Since one century is equal to 3,155,695,200 seconds, you can use this simple formula to convert:

centuries = seconds ÷ 3,155,695,200

The time in centuries is equal to the seconds divided by 3,155,695,200.

For example, here's how to convert 5,000,000,000 seconds to centuries using the formula above.
5,000,000,000 sec = (5,000,000,000 ÷ 3,155,695,200) = 1.584437 centuries

Seconds and centuries are both units used to measure time. Keep reading to learn more about each unit of measure.


The second has historically been defined as 1/60 of a minute or 1/86,400 of a day. According the to SI definition, the second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the unperturbed ground state of the caesium 133 atom.[1]

The second is the SI base unit for time in the metric system. Seconds can be abbreviated as sec; for example, 1 second can be written as 1 sec.


The century is a time period of 100 years.

Second to Century Conversion Table

Second measurements converted to centuries
Seconds Centuries
1 sec 0.00000000031689
2 sec 0.00000000063377
3 sec 0.00000000095066
4 sec 0.0000000012675
5 sec 0.0000000015844
6 sec 0.0000000019013
7 sec 0.0000000022182
8 sec 0.0000000025351
9 sec 0.000000002852
10 sec 0.0000000031689
100 sec 0.000000031689
1,000 sec 0.00000031689
10,000 sec 0.0000031689
100,000 sec 0.000031689
1,000,000 sec 0.000317
10,000,000 sec 0.003169
100,000,000 sec 0.031689
1,000,000,000 sec 0.316887
10,000,000,000 sec 3.1689


  1. International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019,

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