Foot-candle to Lux Conversion Guide (fc to lx)
Performing a conversion from Foot-candle to Lux requires an understanding of the relationship between their respective illuminance magnitudes. This guide provides the exact computation parameters needed to transition from fc to lx without losing data integrity.
Conversion Table
| Foot-candle (fc) | Lux (lx) |
|---|---|
| 0.001 | 0.0107639 |
| 0.01 | 0.107639 |
| 0.1 | 1.07639 |
| 1 | 10.7639 |
| 5 | 53.8195 |
| 10 | 107.639 |
| 50 | 538.195 |
| 100 | 1076.39 |
| 500 | 5381.95 |
| 1000 | 10763.9 |
Formula
To execute this calculation, the value in Foot-candle is first normalized to the base Illuminance unit (Lux) before being scaled to Lux. The direct multiplier for Foot-candle to Lux is determined by the ratio of their scientific definitions.
Examples
For instance, 1 fc is strictly defined as roughly 10.7639 lx. If you are dealing with a larger scale, such as 50 fc, the resulting lx value maintains this exact linear proportionality.
Reverse Formula
The inverse conversion (Lux back to Foot-candle) is equally valid and uses the reciprocal of the primary ratio. Our interface allows you to toggle this direction instantly to verify both sides of the Illuminance equation.
Common Mistakes
The most frequent error in fc to lx calculations is the misapplication of unit prefixes (like centi- or milli-). Additionally, confusing Foot-candle with similar units in different systems (like US vs. Imperial) can lead to significant discrepancies.
Accuracy Notes
At FastConverto, we use a 64-bit floating-point engine. For the Foot-candle to Lux transition, this means your results are processed with enough precision to satisfy even rigorous laboratory requirements, though most users will find 2-4 decimal places sufficient for practical use.
Industry Use
This specific conversion is a staple in Illuminance-heavy industries. Whether it's Foot-candle being used in raw material procurement or Lux being required for final product labeling, accurate data flow is essential for project interoperability.
Frequently Asked Questions
What is the exact ratio of Foot-candle to Lux?
One Foot-candle is equal to 10.7639 Lux.
Does the conversion factor ever change?
No. These definitions are fixed by international measurement treaties and standard bodies.
How many decimals should I use?
For standard tasks, 2 decimals are common. For scientific work, we recommend keeping all significant figures provided by our calculator.