Convert Planck Time to Attoseconds
Convert Planck Time (t_P) to Attoseconds (as) instantly and accurately.
Conversion Formula
as = t_P × 5.391247000e-26
About Planck Time
The Planck time (t_P) = √(ℏG/c⁵) ≈ 5.391 × 10⁻⁴⁴ s — the time for light to travel one Planck length (~1.616 × 10⁻³⁵ m). Below this scale, general relativity and quantum mechanics both break down; a theory of quantum gravity is needed. No physical process or instrument approaches this timescale — it is a theoretical lower bound. Introduced by Max Planck in 1899. 1 t_P ≈ 5.391 × 10⁻⁴⁴ s.
About Attoseconds
An attosecond (as) = 10⁻¹⁸ s - the timescale of electron dynamics in atoms. The Bohr-model orbital period in hydrogen is ~152 as. Electron tunnelling through atomic potential barriers takes a few hundred as. The 2023 Nobel Prize in Physics (Agostini, Krausz, L'Huillier) honoured methods for generating sub-100 as pulses via high-harmonic generation in Ti:sapphire lasers. 1 as = 10⁻¹⁸ s = 1,000 zs.
Quick Reference Table
| Planck Time (t_P) | Attoseconds (as) |
|---|---|
| 1 t_P | 5.391 × 10-26 as |
| 2 t_P | 1.078 × 10-25 as |
| 5 t_P | 2.696 × 10-25 as |
| 10 t_P | 5.391 × 10-25 as |
| 25 t_P | 1.348 × 10-24 as |
| 50 t_P | 2.696 × 10-24 as |
| 100 t_P | 5.391 × 10-24 as |