Convert Picolux to Millilux
Convert Picolux (plx) to Millilux (mlx) instantly and accurately.
Conversion Formula
mlx = plx × 1.000000000e-9
About Picolux
The picolux (plx) equals 10⁻¹² lx. A theoretical subunit used only in precision photometric standard traceability. Even the faintest measurable natural illuminance - starlight on a moonless night at ~200 nlx - is 200 billion times brighter. Appears only in SI reference chains for calibration laboratories. 1 plx = 10⁻¹² lx.
About Millilux
The millilux (mlx) equals 10⁻³ lx, also called 1 nox (CIE historical unit). Moonless clear sky: ~1 mlx; quarter moon: ~20-50 mlx; full moon at zenith: ~100-270 mlx. Minimum for dark-adapted outdoor navigation. Emergency exit pathway lighting is typically 1-5 mlx. 1 mlx = 10⁻³ lx = 1 nox.
Quick Reference Table
| Picolux (plx) | Millilux (mlx) |
|---|---|
| 1 plx | 1 × 10-9 mlx |
| 2 plx | 2 × 10-9 mlx |
| 5 plx | 5 × 10-9 mlx |
| 10 plx | 1 × 10-8 mlx |
| 25 plx | 2.5 × 10-8 mlx |
| 50 plx | 5 × 10-8 mlx |
| 100 plx | 1 × 10-7 mlx |