Convert Gigacandelas to Hefnerkerzen
Convert Gigacandelas (Gcd) to Hefnerkerzen (HK) instantly and accurately.
Conversion Formula
HK = Gcd × 1086956522
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.
About Hefnerkerzen
The Hefnerkerze (HK) equals 0.920 cd (DIN 5031 conventional value). The German photometric standard unit from 1884 to 1942, defined by the luminous intensity of a Hefner lamp burning amyl acetate. Used as the official German standard before the adoption of the international candela. 1 HK = 0.920 cd.
Quick Reference Table
| Gigacandelas (Gcd) | Hefnerkerzen (HK) |
|---|---|
| 1 Gcd | 1.087 × 109 HK |
| 2 Gcd | 2.174 × 109 HK |
| 5 Gcd | 5.435 × 109 HK |
| 10 Gcd | 1.087 × 1010 HK |
| 25 Gcd | 2.717 × 1010 HK |
| 50 Gcd | 5.435 × 1010 HK |
| 100 Gcd | 1.087 × 1011 HK |