Convert Yoctoseconds to Femtoseconds
Convert Yoctoseconds (ys) to Femtoseconds (fs) instantly and accurately.
Conversion Formula
fs = ys × 1.000000000e-9
About Yoctoseconds
A yoctosecond (ys) = 10⁻²⁴ s - the smallest named SI prefix time unit. Light travels ~0.3 fm in 1 ys, about one-tenth the proton charge radius. Strong-force quark binding operates on ~1 ys timescales; W and Z boson lifetimes are ~260-290 ys. Lead-lead collisions at the LHC produce quark-gluon plasma that thermalises within a few ys. These timescales are inferred from decay widths via ΔE × Δt ≥ ℏ. 1 ys = 10⁻²⁴ s.
About Femtoseconds
A femtosecond (fs) = 10⁻¹⁵ s - the timescale of molecular vibrations and chemical reactions. Bond stretching: 10-200 fs; bending: 50-500 fs. Ahmed Zewail won the 1999 Nobel Prize in Chemistry for femtochemistry, capturing transition states in real time. Ti:sapphire lasers produce 10-100 fs pulses; LASIK uses 10-100 fs for precise corneal cuts. At 800 nm, one optical cycle = 2.67 fs. Light travels 300 nm in 1 fs. 1 fs = 10⁻¹⁵ s.
Quick Reference Table
| Yoctoseconds (ys) | Femtoseconds (fs) |
|---|---|
| 1 ys | 1 × 10-9 fs |
| 2 ys | 2 × 10-9 fs |
| 5 ys | 5 × 10-9 fs |
| 10 ys | 1 × 10-8 fs |
| 25 ys | 2.5 × 10-8 fs |
| 50 ys | 5 × 10-8 fs |
| 100 ys | 1 × 10-7 fs |