Convert Candelas per square inch to Nanocandelas per square metre
Convert Candelas per square inch (cd/in²) to Nanocandelas per square metre (ncd/m²) instantly and accurately.
Conversion Formula
ncd/m² = cd/in² × 1550003100000
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.
About Nanocandelas per square metre
The nanocandela per square metre (ncd/m²) equals 10⁻⁹ cd/m². Represents luminance at the threshold of cooled photomultiplier tubes and avalanche photodiode detectors. The darkest OLED black levels (~10⁻⁴ cd/m²) are still five orders of magnitude brighter; this unit is used in single-photon counting photometry. 1 ncd/m² = 10⁻⁹ cd/m².
Quick Reference Table
| Candelas per square inch (cd/in²) | Nanocandelas per square metre (ncd/m²) |
|---|---|
| 1 cd/in² | 1.55 × 1012 ncd/m² |
| 2 cd/in² | 3.1 × 1012 ncd/m² |
| 5 cd/in² | 7.75 × 1012 ncd/m² |
| 10 cd/in² | 1.55 × 1013 ncd/m² |
| 25 cd/in² | 3.875 × 1013 ncd/m² |
| 50 cd/in² | 7.75 × 1013 ncd/m² |
| 100 cd/in² | 1.55 × 1014 ncd/m² |