Foot-candles to Kilolux Converter
Enter the illumination in foot-candles below to convert it to kilolux.
Convert Foot-candles to Kilolux
Enter a value in foot-candles (fc) to convert to kilolux (klx).
Foot-candle to Kilolux Conversion Table
Table showing various foot-candle measurements converted to kilolux. Click any preset value or arrow to load it into the converter.
| Foot-candles (fc) | Kilolux (klx) |
|---|---|
| 1 fc | 0.0107639 klx |
| 2 fc | 0.0215278 klx |
| 2.5 fc | 0.0269098 klx |
| 5 fc | 0.0538196 klx |
| 10 fc | 0.1076391 klx |
| 15 fc | 0.1614587 klx |
| 20 fc | 0.2152782 klx |
| 25 fc | 0.2690978 klx |
| 30 fc | 0.3229173 klx |
| 50 fc | 0.5381955 klx |
How to Convert Foot-candles to Kilolux
To convert foot-candles to kilolux, multiply the illumination by the following conversion ratio: 0.0107639 kilolux/foot-candle.
Since one foot-candle is equal to 0.0107639 kilolux, you can use this simple formula to convert:
The illumination in kilolux is equal to the illumination in foot-candles multiplied by 0.0107639.
For example, here's how to convert 5 foot-candles to kilolux using the formula above.
How Many Kilolux Are in a Foot-candle?
There are 0.0107639 kilolux in a foot-candle, which is why we use this value in the formula above.
Our foot-candle to kilolux calculator automatically converts your illumination measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Foot-candles and kilolux are both units used to measure illumination. Keep reading to learn more about each unit.
What Is a Foot-candle?
A foot-candle is a unit of illumination equal to 10.7639104 lux (lx), the base unit for illumination. Architectural and photography lighting unit (1 lm/ft² ≈ 10.7639 lux). [1]
The foot-candle is classified as a US customary unit of illumination. Foot-candles can be abbreviated as fc; for example, 1 foot-candle can be written as 1 fc.
When working with foot-candles (fc) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, foot-candles (fc) are widely used across standard illumination applications within US customary workflows, engineering documentation, and technical data sheets.
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). [2]
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.
When converting illumination between foot-candles (fc) and kilolux (klx), keep full floating-point precision (1 fc = 0.0107639 klx; 1 klx = 92.9030401 fc) during intermediate calculations and round only the final kilolux figure to match your instrument tolerance.
More Foot-candle & Kilolux Conversions
Need to calculate in the opposite direction? Use our kilolux to foot-candles calculator to switch your starting unit immediately. You can also explore related tools such as converting kilolux to foot-candles, converting lux to kilolux, or converting foot-candles to lux.
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Illumination Metrology Standard — Foot-candles (fc) to Kilolux (klx)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Foot-candle (fc) & Kilolux (klx)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (fc to klx)