Convert Picoseconds to Julian Years
Convert Picoseconds (ps) to Julian Years (a_J) instantly and accurately.
Conversion Formula
a_J = ps × 3.168808781e-20
About Picoseconds
A picosecond (ps) = 10⁻¹² s; light travels 0.3 mm. Water molecules reorient via H-bond dynamics in ~1-3 ps, explaining microwave absorption. THz spectroscopy probes ps-scale dynamics in molecular systems. Sub-5 nm CMOS gate delays are a few ps; GaAs HEMTs reach ~0.1 ps. Muon mean lifetime = 2,197 ps. OTDR uses ps pulses for millimetre-resolution fibre-fault location. 1 ps = 10⁻¹² s.
About Julian Years
The Julian year (a_J) = exactly 365.25 days = 31,557,600 s - the IAU standard year for astronomical distances. The light-year is formally 1 ly = c × 1 a_J = 9.461 × 10¹⁵ m (IAU 2012 B2). Julian years differ from Gregorian years by only 648 s (~10.8 min/year); important for high-precision astrometry or calculations spanning centuries. 1 a_J = 365.25 d = 31,557,600 s.
Quick Reference Table
| Picoseconds (ps) | Julian Years (a_J) |
|---|---|
| 1 ps | 3.169 × 10-20 a_J |
| 2 ps | 6.338 × 10-20 a_J |
| 5 ps | 1.584 × 10-19 a_J |
| 10 ps | 3.169 × 10-19 a_J |
| 25 ps | 7.922 × 10-19 a_J |
| 50 ps | 1.584 × 10-18 a_J |
| 100 ps | 3.169 × 10-18 a_J |