Convert Gigayears to Planck Time
Convert Gigayears (Ga) to Planck Time (t_P) instantly and accurately.
Conversion Formula
t_P = Ga × 5.853367876e+59
About Gigayears
A gigayear (1 Ga) = 10⁹ yr ≈ 3.156 × 10¹⁶ s - the timescale of stellar evolution and cosmology. Universe age: 13.787 ± 0.020 Ga (Planck CMB). Sun: 4.603 Ga old; red giant in ~5 Ga. A 0.1 M☉ red dwarf lives ~10,000 Ga. Uranium-238 half-life = 4.468 Ga (used in radiometric dating). Proton decay (GUT prediction): ~10³⁴ yr = ~10²⁵ Ga. 1 Ga = 10⁹ yr.
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.
Quick Reference Table
| Gigayears (Ga) | Planck Time (t_P) |
|---|---|
| 1 Ga | 5.853 × 1059 t_P |
| 2 Ga | 1.171 × 1060 t_P |
| 5 Ga | 2.927 × 1060 t_P |
| 10 Ga | 5.853 × 1060 t_P |
| 25 Ga | 1.463 × 1061 t_P |
| 50 Ga | 2.927 × 1061 t_P |
| 100 Ga | 5.853 × 1061 t_P |