Convert second to year
1 s = 3.168808781e-08 yr
1 s = 3.1688e-08 yr
1 s in every time unit
| Planck time | 1.8549e+43 tP |
| attosecond | 1.0000e+18 as |
| femtosecond | 1,000,000,000,000,000 fs |
| picosecond | 1,000,000,000,000 ps |
| nanosecond | 1,000,000,000 ns |
| shake | 100,000,000 shake |
| microsecond | 1,000,000 µs |
| millisecond | 1,000 ms |
| second | 1 s |
| minute | 0.016667 min |
| hour | 0.00027778 h |
| sidereal day | 0.000011606 sd |
| day | 0.000011574 d |
| week | 0.0000016534 wk |
| fortnight | 8.2672e-07 fn |
| month | 3.8026e-07 mo |
| year | 3.1688e-08 yr |
| decade | 3.1688e-09 dec |
| century | 3.1688e-10 cent |
| millennium | 3.1688e-11 mil |
| megayear | 3.1688e-14 Myr |
| eon | 3.1688e-17 eon |
How the conversion works
Multiply by 3.168808781e-08 to go from second to year, or divide by it to go back. Every conversion on this site routes through the SI value (s) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? year to second — 1 yr = 31,557,600 s.
second to year — common values
| 1 s | 3.1688088e-08 yr |
| 2 s | 6.3376176e-08 yr |
| 3 s | 9.5064263e-08 yr |
| 5 s | 1.5844044e-07 yr |
| 10 s | 3.1688088e-07 yr |
| 15 s | 4.7532132e-07 yr |
| 20 s | 6.3376176e-07 yr |
| 25 s | 7.9220220e-07 yr |
| 50 s | 0.0000015844044 yr |
| 75 s | 0.0000023766066 yr |
| 100 s | 0.0000031688088 yr |
| 250 s | 0.000007922022 yr |
| 500 s | 0.000015844044 yr |
| 1000 s | 0.000031688088 yr |