To convert Julian years to seconds, multiply the value by 31,557,600. To go the other way, multiply seconds by 3.16881 × 10⁻⁸ to get Julian years.
| Julian Years (a) | Seconds (s) |
|---|---|
| 1 a | 31,557,600 s |
| 2 a | 63,115,200 s |
| 3 a | 94,672,800 s |
| 4 a | 126,230,400 s |
| 5 a | 157,788,000 s |
| 6 a | 189,345,600 s |
| 7 a | 220,903,200 s |
| 8 a | 252,460,800 s |
| 9 a | 284,018,400 s |
| 10 a | 315,576,000 s |
| 12 a | 378,691,200 s |
| 14 a | 441,806,400 s |
| 15 a | 473,364,000 s |
| 20 a | 631,152,000 s |
| 21 a | 662,709,600 s |
| 24 a | 757,382,400 s |
| 25 a | 788,940,000 s |
| 30 a | 946,728,000 s |
| 40 a | 1,262,304,000 s |
| 50 a | 1,577,880,000 s |
| 60 a | 1,893,456,000 s |
| 75 a | 2,366,820,000 s |
| 80 a | 2,524,608,000 s |
| 100 a | 3,155,760,000 s |
| 200 a | 6,311,520,000 s |
| 250 a | 7,889,400,000 s |
| 300 a | 9,467,280,000 s |
| 400 a | 12,623,040,000 s |
| 500 a | 15,778,800,000 s |
| 750 a | 23,668,200,000 s |
| 1,000 a | 31,557,600,000 s |
Julian year (a). The Julian year is exactly 365.25 days, used in astronomy (light years).
Second (s). The second is the SI base unit of time, defined by the caesium-133 atom.
There are 31,557,600 seconds in one Julian year.
Multiply the number of Julian years by 31,557,600. For example, 10 Julian years equal 315,576,000 seconds.
One second equals 3.16881 × 10⁻⁸ Julian years.
378,691,200 seconds. Other common values: 5 Julian years = 157,788,000 seconds and 100 Julian years = 3,155,760,000 seconds.