Convert Picocandelas to Gigacandelas
Convert Picocandelas (pcd) to Gigacandelas (Gcd) instantly and accurately.
Conversion Formula
Gcd = pcd × 1.000000000e-21
About Picocandelas
The picocandela (pcd) equals 10⁻¹² cd. A theoretical subunit used only in precision photometric standard traceability and single-photon detector characterisation. The faintest LED indicator in standby mode (~10 µcd) is one million times brighter. Appears in calibration chain documentation. 1 pcd = 10⁻¹² cd.
About Gigacandelas
The gigacandela (Gcd) equals 10⁹ cd. The scale for extremely powerful directed beams and for astrophysical luminous intensity comparisons. A nuclear fireball at peak emission approaches this range; high-power pulsed laser outputs in the visible spectrum can reach Gcd-level peak intensity in the beam axis. 1 Gcd = 10⁹ cd.
Quick Reference Table
| Picocandelas (pcd) | Gigacandelas (Gcd) |
|---|---|
| 1 pcd | 1 × 10-21 Gcd |
| 2 pcd | 2 × 10-21 Gcd |
| 5 pcd | 5 × 10-21 Gcd |
| 10 pcd | 1 × 10-20 Gcd |
| 25 pcd | 2.5 × 10-20 Gcd |
| 50 pcd | 5 × 10-20 Gcd |
| 100 pcd | 1 × 10-19 Gcd |