Convert Lux to Millilux (lx to mlx)
1 lux (lx) = 1000 millilux (mlx). 1 mlx = 0.001 lx. Example: 15 lx = 15 × 1000 = 15000 mlx.
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1 lx = 1000 mlx
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk lux to millilux converter to paste a column from Excel.
How to Convert Lux to Millilux
- 1 lx = 1000 mlx
- 1 mlx = 0.001 lx
- Example: convert 15 lx to mlx: 15 lx = 15 × 1000 mlx = 15000 mlx
Formula
mlx = lx × 1000
Derivation from SI units:
- 1 lx = 1 lm/m².
- 1 mlx = 10⁻³ lx.
Both units are defined exactly, so the factor is exact. Lux definition: lux; Millilux definition: millilux.
Worked examples
- A reading of 100 lx converts to 100000 mlx.
100 lx × 1000 = 100000 mlx - A value of 750 lx is 750000 mlx.
750 lx × 1000 = 750000 mlx
Lux to Millilux conversion table
| Lux (lx) | Millilux (mlx) |
|---|---|
| 1 lx | 1000 mlx |
| 10 lx | 10000 mlx |
| 50 lx | 50000 mlx |
| 100 lx | 100000 mlx |
| 300 lx | 300000 mlx |
| 500 lx | 500000 mlx |
| 750 lx | 750000 mlx |
| 1000 lx | 1000000 mlx |
| 10000 lx | 10000000 mlx |
| 100000 lx | 100000000 mlx |
Where it's used
Lux are used for workplace lighting standards (EN 12464), while millilux appear in night-vision and low-light camera specifications. Both measure illuminance (light falling on a surface), so the conversion is a fixed factor.
Lux to other illuminance units
| Conversion | 1 lx equals |
|---|---|
| lux to millilux | 1000 mlx |
| lux to foot-candle | 0.09290304 fc |
| lux to kilolux | 0.001 klx |
| lux to phot | 0.0001 ph |
Frequently asked questions
How many millilux are in 1 lux?
1 lx = 1000 mlx.
How do I convert lux to millilux?
Multiply the value in lx by 1000. For example, 15 lx × 1000 = 15000 mlx.
Is the lx to mlx conversion exact?
Yes. Both units are defined exactly, and 1 lx is exactly 1000 mlx.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (becquerel, gray, sievert, lux) and Table 2 (candela).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Lux to Millilux (lx to mlx). Retrieved October 25, 2026, from https://scientificconverters.com/illuminance/lux-to-millilux/
IEEE
Scientific Converters, "Convert Lux to Millilux (lx to mlx)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/illuminance/lux-to-millilux/