Convert Years to Seconds

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

SWAP UNITS
Results in Seconds:
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1 yr = 31,556,952 sec
Do you want to convert seconds to years?

How to Convert Years to Seconds

conversion scale showing years and equivalent seconds time values

To convert a year measurement to a second measurement, multiply the time by the conversion ratio. One year is equal to 31,556,952 seconds, so use this simple formula to convert:

seconds = years × 31,556,952

The time in seconds is equal to the years multiplied by 31,556,952.

For example, here's how to convert 5 years to seconds using the formula above.
5 yr = (5 × 31,556,952) = 157,784,760 sec

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

Years

One year is the time it takes for the Earth to complete its orbit around the Sun. There are 365 days in a year, with the exception of the leap year when there are 366.

Years can be abbreviated as yr, and are also sometimes abbreviated as y. For example, 1 year can be written as 1 yr or 1 y.

Seconds

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

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.

Year Measurements and Equivalent Second Conversions

Common year values converted to the equivalent second value
Years Seconds
1 yr 31,556,952 sec
2 yr 63,113,904 sec
3 yr 94,670,856 sec
4 yr 126,227,808 sec
5 yr 157,784,760 sec
6 yr 189,341,712 sec
7 yr 220,898,664 sec
8 yr 252,455,616 sec
9 yr 284,012,568 sec
10 yr 315,569,520 sec
11 yr 347,126,472 sec
12 yr 378,683,424 sec
13 yr 410,240,376 sec
14 yr 441,797,328 sec
15 yr 473,354,280 sec
16 yr 504,911,232 sec
17 yr 536,468,184 sec
18 yr 568,025,136 sec
19 yr 599,582,088 sec
20 yr 631,139,040 sec
21 yr 662,695,992 sec
22 yr 694,252,944 sec
23 yr 725,809,896 sec
24 yr 757,366,848 sec
25 yr 788,923,800 sec
26 yr 820,480,752 sec
27 yr 852,037,704 sec
28 yr 883,594,656 sec
29 yr 915,151,608 sec
30 yr 946,708,560 sec
31 yr 978,265,512 sec
32 yr 1,009,822,464 sec
33 yr 1,041,379,416 sec
34 yr 1,072,936,368 sec
35 yr 1,104,493,320 sec
36 yr 1,136,050,272 sec
37 yr 1,167,607,224 sec
38 yr 1,199,164,176 sec
39 yr 1,230,721,128 sec
40 yr 1,262,278,080 sec

More Year Time Conversions

Convert to Centuries
1 yr is equal to 0.01 centuries
Convert to Decades
1 yr is equal to 0.1 decades
Convert to Months
1 yr is equal to 12 months
Convert to Weeks
1 yr is equal to 52.1775 weeks
Convert to Days
1 yr is equal to 365.2425 days
Convert to Hours
1 yr is equal to 8,765.82 hours
Convert to Minutes
1 yr is equal to 525,949.2 minutes
Convert to Milliseconds
1 yr is equal to 31,556,952,000 milliseconds
Convert to Microseconds
1 yr is equal to 31,556,952,000,000 microseconds
Convert to Nanoseconds
1 yr is equal to 31,557,000,000,000,000 nanoseconds