Kilolux to Nox Converter
Enter the illumination in kilolux below to convert it to nox.
Convert Kilolux to Nox
Enter a value in kilolux (klx) to convert to nox (nx).
Kilolux to Nox Conversion Table
Table showing various kilolux measurements converted to nox. Click any preset value or arrow to load it into the converter.
How to Convert Kilolux to Nox
To convert kilolux to nox, multiply the illumination by the following conversion ratio: 1,000,000 nox/kilolux.
Since one kilolux is equal to 1,000,000 nox, you can use this simple formula to convert:
The illumination in nox is equal to the illumination in kilolux multiplied by 1,000,000.
For example, here's how to convert 5 kilolux to nox using the formula above.
How Many Nox Are in a Kilolux?
There are 1,000,000 nox in a kilolux, which is why we use this value in the formula above.
Our kilolux to nox calculator automatically converts your illumination measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Kilolux and nox 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 Nox?
A nox is a unit of illumination equal to 1/1,000 of a lux (0.001 lx). Dark-adapted illuminance unit equal to 1 millilux (0.001 lx). [2]
The nox is classified as a metric and SI-compatible unit of illumination. Nox can be abbreviated as nx; for example, 1 nox can be written as 1 nx.
When working with nox (nx) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, nox (nx) 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 nox (nx), keep full floating-point precision (1 klx = 1,000,000 nx; 1 nx = 0.000001 klx) during intermediate calculations and round only the final nox figure to match your instrument tolerance.
More Kilolux & Nox Conversions
Need to calculate in the opposite direction? Use our nox to kilolux calculator to switch your starting unit immediately. You can also explore related tools such as converting nox to kilolux, converting kilolux 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 — Kilolux (klx) to Nox (nx)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Kilolux (klx) & Nox (nx)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (klx to nx)