At One Place

Years to seconds

1 year in seconds
1 yr = 31,556,952 s
s = yr × 31,556,952

To convert years to seconds, multiply by 31,556,952. The table below gives the values people look up most often, and the converter works for any number.

Years to seconds table

Common year values converted to seconds.
Years Seconds
1 yr 31,556,952
2 yr 63,113,904
3 yr 94,670,856
4 yr 126,227,810
5 yr 157,784,760
10 yr 315,569,520
15 yr 473,354,280
20 yr 631,139,040
25 yr 788,923,800
30 yr 946,708,560
40 yr 1,262,278,100
50 yr 1,577,847,600
75 yr 2,366,771,400
100 yr 3,155,695,200
250 yr 7,889,238,000
500 yr 15,778,476,000
1,000 yr 31,556,952,000

How the conversion works

The relationship is s = yr × 31,556,952. Both units measure time, so the conversion is a fixed factor that never changes.

Year: Mean Gregorian year, 365.2425 days.

Common questions

How many seconds are in one year?
One year equals 31,556,952 seconds. s = yr × 31,556,952.
How do you convert years to seconds?
Use s = yr × 31,556,952. So 10 yr is 315,569,520 s.
How many years are in one second?
One second equals 3.169 × 10^-8 years, which is the reverse of the conversion above.
Is there more than one kind of year?
Mean Gregorian year, 365.2425 days.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked