Convert Picocandelas per square metre to Candelas per square inch
Convert Picocandelas per square metre (pcd/m²) to Candelas per square inch (cd/in²) instantly and accurately.
Conversion Formula
cd/in² = pcd/m² × 6.451600000e-16
About Picocandelas per square metre
The picocandela per square metre (pcd/m²) equals 10⁻¹² cd/m². A theoretical subunit for precision photometric standards and astrophysical brightness modelling. Even the darkest measurable surfaces in calibrated laboratories have luminance many orders of magnitude above this scale. Used only in radiometric standard traceability chains. 1 pcd/m² = 10⁻¹² cd/m².
About Candelas per square inch
The candela per square inch (cd/in²) equals 1/0.00064516 cd/m² ≈ 1 550 cd/m². Used in US LED and CRT datasheets when citing luminance of small emitter areas. A high-brightness packaged LED chip in a focussed-beam configuration can reach 1-20 cd/in². 1 cd/in² = 1/(0.0254²) cd/m².
Quick Reference Table
| Picocandelas per square metre (pcd/m²) | Candelas per square inch (cd/in²) |
|---|---|
| 1 pcd/m² | 6.452 × 10-16 cd/in² |
| 2 pcd/m² | 1.29 × 10-15 cd/in² |
| 5 pcd/m² | 3.226 × 10-15 cd/in² |
| 10 pcd/m² | 6.452 × 10-15 cd/in² |
| 25 pcd/m² | 1.613 × 10-14 cd/in² |
| 50 pcd/m² | 3.226 × 10-14 cd/in² |
| 100 pcd/m² | 6.452 × 10-14 cd/in² |