Convert Attoseconds to Megayears
Convert Attoseconds (as) to Megayears (Ma) instantly and accurately.
Conversion Formula
Ma = as × 3.168873851e-32
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.
About Megayears
A megayear (1 Ma) = 10⁶ yr ≈ 3.156 × 10¹³ s - the timescale of geology and tectonic evolution. The K-Pg mass extinction at 66.0 Ma; Cambrian explosion ~538.8 Ma; Great Oxygenation Event ~2,400 Ma. Plate motion at 2-10 cm/yr = 200-1,000 km per Ma (Atlantic ~3,000 km wider since Pangaea rifting ~200 Ma ago). Background extinction rate measured in extinctions per million species-years. 1 Ma = 10⁶ yr.
Quick Reference Table
| Attoseconds (as) | Megayears (Ma) |
|---|---|
| 1 as | 3.169 × 10-32 Ma |
| 2 as | 6.338 × 10-32 Ma |
| 5 as | 1.584 × 10-31 Ma |
| 10 as | 3.169 × 10-31 Ma |
| 25 as | 7.922 × 10-31 Ma |
| 50 as | 1.584 × 10-30 Ma |
| 100 as | 3.169 × 10-30 Ma |