Convert Picolumens to Millilumens
Convert Picolumens (plm) to Millilumens (mlm) instantly and accurately.
Conversion Formula
mlm = plm × 1.000000000e-9
About Picolumens
The picolumen (plm) equals 10⁻¹² lm. A sub-unit used only in precision optical metrology and photomultiplier calibration chains. Equivalent to the photometric output of a 555 nm monochromatic source radiating approximately 1.46 fW of radiant power. Below the sensitivity threshold of most photometric instruments without special cooling. 1 plm = 10⁻¹² lm.
About Millilumens
The millilumen (mlm) equals 10⁻³ lm. The output range for typical LED indicator packages: a standard 5 mm through-hole LED at 20 mA produces 10-200 mlm depending on color and efficiency. Small wearable health-monitor LEDs and remote-control emitter LEDs operate in this range. 1 mlm = 10⁻³ lm.
Quick Reference Table
| Picolumens (plm) | Millilumens (mlm) |
|---|---|
| 1 plm | 1 × 10-9 mlm |
| 2 plm | 2 × 10-9 mlm |
| 5 plm | 5 × 10-9 mlm |
| 10 plm | 1 × 10-8 mlm |
| 25 plm | 2.5 × 10-8 mlm |
| 50 plm | 5 × 10-8 mlm |
| 100 plm | 1 × 10-7 mlm |