Convert Millilux to Phots
Convert Millilux (mlx) to Phots (ph) instantly and accurately.
Conversion Formula
ph = mlx × 1.000000000e-7
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.
About Phots
The phot (ph) equals 1 lm/cm² = 10 000 lx. The CGS-photometric unit of illuminance. Pre-SI optics texts express daylight in phots: full tropical sunshine is ~10 ph (100 klx); overcast sky ~0.1-0.2 ph. Wholly superseded by lux and kilolux in modern standards. 1 ph = 10⁴ lx.
Quick Reference Table
| Millilux (mlx) | Phots (ph) |
|---|---|
| 1 mlx | 1 × 10-7 ph |
| 2 mlx | 2 × 10-7 ph |
| 5 mlx | 5 × 10-7 ph |
| 10 mlx | 1 × 10-6 ph |
| 25 mlx | 2.5 × 10-6 ph |
| 50 mlx | 5 × 10-6 ph |
| 100 mlx | 1 × 10-5 ph |