Convert Picocandelas to Candelas
Convert Picocandelas (pcd) to Candelas (cd) instantly and accurately.
Conversion Formula
cd = pcd × 1.000000000e-12
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 Candelas
The candela (cd) is the SI base unit of luminous intensity. A standard wax candle emits ~1 cd; a 60 W incandescent bulb ~60 cd (assuming Lambertian emission); a 1 W white power LED ~100 cd peak in a 5° beam. Defined since 2019 by fixing K_cd = 683 lm/W at 540 THz. 1 cd = 1 lm/sr.
Quick Reference Table
| Picocandelas (pcd) | Candelas (cd) |
|---|---|
| 1 pcd | 1 × 10-12 cd |
| 2 pcd | 2 × 10-12 cd |
| 5 pcd | 5 × 10-12 cd |
| 10 pcd | 1 × 10-11 cd |
| 25 pcd | 2.5 × 10-11 cd |
| 50 pcd | 5 × 10-11 cd |
| 100 pcd | 1 × 10-10 cd |