Convert day to year
1 d = 0.002737850787 yr
1 d = 0.0027379 yr
1 d in every time unit
| Planck time | 1.6026e+48 tP |
| attosecond | 8.6400e+22 as |
| femtosecond | 8.6400e+19 fs |
| picosecond | 8.6400e+16 ps |
| nanosecond | 86,400,000,000,000 ns |
| shake | 8,640,000,000,000 shake |
| microsecond | 86,400,000,000 µs |
| millisecond | 86,400,000 ms |
| second | 86,400 s |
| minute | 1,440 min |
| hour | 24 h |
| sidereal day | 1.0027 sd |
| day | 1 d |
| week | 0.14286 wk |
| fortnight | 0.071429 fn |
| month | 0.032855 mo |
| year | 0.0027379 yr |
| decade | 0.00027379 dec |
| century | 0.000027379 cent |
| millennium | 0.0000027379 mil |
| megayear | 2.7379e-09 Myr |
| eon | 2.7379e-12 eon |
How the conversion works
Multiply by 0.002737850787 to go from day 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 day — 1 yr = 365.25 d.
day to year — common values
| 1 d | 0.0027378508 yr |
| 2 d | 0.0054757016 yr |
| 3 d | 0.0082135524 yr |
| 5 d | 0.013689254 yr |
| 10 d | 0.027378508 yr |
| 15 d | 0.041067762 yr |
| 20 d | 0.054757016 yr |
| 25 d | 0.06844627 yr |
| 50 d | 0.13689254 yr |
| 75 d | 0.20533881 yr |
| 100 d | 0.27378508 yr |
| 250 d | 0.6844627 yr |
| 500 d | 1.3689254 yr |
| 1000 d | 2.7378508 yr |