Millilux to Lux Converter
Enter the illumination in millilux below to convert it to lux.
Convert Millilux to Lux
Enter a value in millilux (mlx) to convert to lux (lx).
Millilux to Lux Conversion Table
Table showing various millilux measurements converted to lux. Click any preset value or arrow to load it into the converter.
How to Convert Millilux to Lux
To convert millilux to lux, multiply the illumination by the following conversion ratio: 0.001 lux/millilux.
Since one millilux is equal to 0.001 lux, you can use this simple formula to convert:
The illumination in lux is equal to the illumination in millilux multiplied by 0.001.
For example, here's how to convert 10 millilux to lux using the formula above.
How Many Lux Are in a Millilux?
There are 0.001 lux in a millilux, which is why we use this value in the formula above.
Our millilux to lux calculator automatically converts your illumination measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Millilux and lux are both units used to measure illumination. Keep reading to learn more about each unit.
What Is a Millilux?
A millilux is a unit of illumination equal to 1/1,000 of a lux (0.001 lx). Low-light starlight/moonlight illuminance unit (0.001 lx). [1]
The millilux is classified as a metric and SI-compatible unit of illumination. Millilux can be abbreviated as mlx; for example, 1 millilux can be written as 1 mlx.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millilux (mlx) a convenient decimal multiple of the lux (lx).
In practice, millilux (mlx) are widely used across fine-tolerance laboratory, analytical, and micro-scale illumination measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Lux?
SI derived unit of illuminance (1 lumen per square meter). It serves as a primary reference unit for measuring illumination across scientific and practical applications. [2]
The lux is classified as an International System of Units (SI) unit of illumination. Lux can be abbreviated as lx; for example, 1 lux can be written as 1 lx.
As the primary coherent reference unit for illumination in this category, all other illumination units are mathematically anchored to the lux (lx).
In practice, lux (lx) are widely used across standard illumination applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting illumination between millilux (mlx) and lux (lx), keep full floating-point precision (1 mlx = 0.001 lx; 1 lx = 1,000 mlx) during intermediate calculations and round only the final lux figure to match your instrument tolerance.
More Millilux & Lux Conversions
Need to calculate in the opposite direction? Use our lux to millilux converter (lx to mlx) to switch your starting unit immediately. You can also explore related tools such as converting kilolux to lux, converting foot-candles to lux, or converting lux to kilolux.
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Illumination Metrology Standard — Millilux (mlx) to Lux (lx)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Millilux (mlx) & Lux (lx)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (mlx to lx)