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Years to Seconds

Convert years (yr) to seconds (s). Type in either box; the other updates as you go.

⇄

1 yr = 31,556,952 s

1 year equals31,556,952 s
1 second equals3.168873851 × 10⁻⁸ yr
Formulas = yr × 31,556,952

How to convert years to seconds

To convert years to seconds, multiply the number of years by 31,556,952.

s = yr × 31,556,952

Example

Convert 5 years to seconds:

5 yr × 31,556,952 = 157,784,760 s

Year to second conversion chart

Years (yr)Seconds (s)
1 yr31,556,952 s
2 yr63,113,904 s
3 yr94,670,856 s
4 yr126,227,808 s
5 yr157,784,760 s
6 yr189,341,712 s
7 yr220,898,664 s
8 yr252,455,616 s
9 yr284,012,568 s
10 yr315,569,520 s
12 yr378,683,424 s
15 yr473,354,280 s
20 yr631,139,040 s
25 yr788,923,800 s
30 yr946,708,560 s
40 yr1,262,278,080 s
50 yr1,577,847,600 s
60 yr1,893,417,120 s
70 yr2,208,986,640 s
75 yr2,366,771,400 s
80 yr2,524,556,160 s
90 yr2,840,125,680 s
100 yr3,155,695,200 s
150 yr4,733,542,800 s
200 yr6,311,390,400 s
250 yr7,889,238,000 s
500 yr15,778,476,000 s
1,000 yr31,556,952,000 s

Going the other way? See the seconds to years chart.

About the units

Year (yr)

An average Gregorian year, leap years included, is 365.2425 days. A common year is 365 days and a leap year 366.

Second (s)

The second is the SI base unit of time, defined by 9,192,631,770 oscillations of a cesium-133 atom.

Frequently asked questions

How many seconds are in a year?

There are 31,556,952 seconds in a year.

How many years are in a second?

There are 3.168873851 × 10⁻⁸ years in a second.

How do you convert years to seconds?

To convert years to seconds, multiply the number of years by 31,556,952.

What is 5 years in seconds?

5 years equals 157,784,760 seconds.

Convert between milliseconds, seconds, minutes, hours, days, weeks, months and years. Open the time converter to see a value in every unit at once.