Convert year to second
1 yr = 31,557,600 s
1 yr = 31,558,000 s
1 yr in every time unit
| Planck time | 5.8535e+50 tP |
| attosecond | 3.1558e+25 as |
| femtosecond | 3.1558e+22 fs |
| picosecond | 3.1558e+19 ps |
| nanosecond | 3.1558e+16 ns |
| shake | 3.1558e+15 shake |
| microsecond | 31,558,000,000,000 µs |
| millisecond | 31,558,000,000 ms |
| second | 31,558,000 s |
| minute | 525,960 min |
| hour | 8,766 h |
| sidereal day | 366.25 sd |
| day | 365.25 d |
| week | 52.179 wk |
| fortnight | 26.089 fn |
| month | 12 mo |
| year | 1 yr |
| decade | 0.1 dec |
| century | 0.01 cent |
| millennium | 0.001 mil |
| megayear | 0.000001 Myr |
| eon | 1.0000e-09 eon |
How the conversion works
Multiply by 31,557,600 to go from year to second, 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? second to year — 1 s = 3.168808781e-08 yr.
year to second — common values
| 1 yr | 31,557,600 s |
| 2 yr | 63,115,200 s |
| 3 yr | 94,672,800 s |
| 5 yr | 157,788,000 s |
| 10 yr | 315,576,000 s |
| 15 yr | 473,364,000 s |
| 20 yr | 631,152,000 s |
| 25 yr | 788,940,000 s |
| 50 yr | 1,577,880,000 s |
| 75 yr | 2,366,820,000 s |
| 100 yr | 3,155,760,000 s |
| 250 yr | 7,889,400,000 s |
| 500 yr | 15,778,800,000 s |
| 1000 yr | 31,557,600,000 s |