Kilolux to Millilux Converter
Enter the illumination in kilolux below to convert it to millilux.
Convert Kilolux to Millilux
Enter a value in kilolux (klx) to convert to millilux (mlx).
Kilolux to Millilux Conversion Table
Table showing various kilolux measurements converted to millilux. Click any preset value or arrow to load it into the converter.
How to Convert Kilolux to Millilux
To convert kilolux to millilux, multiply the illumination by the following conversion ratio: 1,000,000 millilux/kilolux.
Since one kilolux is equal to 1,000,000 millilux, you can use this simple formula to convert:
The illumination in millilux is equal to the illumination in kilolux multiplied by 1,000,000.
For example, here's how to convert 5 kilolux to millilux using the formula above.
How Many Millilux Are in a Kilolux?
There are 1,000,000 millilux in a kilolux, which is why we use this value in the formula above.
Our kilolux to millilux calculator automatically converts your illumination measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Kilolux and millilux are both units used to measure illumination. Keep reading to learn more about each unit.
What Is a Kilolux?
A kilolux is a unit of illumination equal to 1,000 lux (lx), the base unit for illumination. Equal to 1,000 lux (outdoor daylight benchmark). [1]
The kilolux is classified as a metric and SI-compatible unit of illumination. Kilolux can be abbreviated as klx; for example, 1 kilolux can be written as 1 klx.
In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilolux (klx) a convenient decimal multiple of the lux (lx).
In practice, kilolux (klx) are widely used across large-scale industrial, bulk, and macro-level illumination specifications within SI metric workflows, engineering documentation, and technical data sheets.
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). [2]
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.
When converting illumination between kilolux (klx) and millilux (mlx), keep full floating-point precision (1 klx = 1,000,000 mlx; 1 mlx = 0.000001 klx) during intermediate calculations and round only the final millilux figure to match your instrument tolerance.
More Kilolux & Millilux Conversions
Need to calculate in the opposite direction? Use our millilux to kilolux calculator to switch your starting unit immediately. You can also explore related tools such as converting millilux to kilolux, converting lux to millilux, or converting kilolux to lux.
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Illumination Metrology Standard — Kilolux (klx) to Millilux (mlx)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Kilolux (klx) & Millilux (mlx)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (klx to mlx)