Lux to Foot-candle Conversion Guide (lx to fc)
Performing a conversion from Lux to Foot-candle requires an understanding of the relationship between their respective illuminance magnitudes. This guide provides the exact computation parameters needed to transition from lx to fc without losing data integrity.
Conversion Table
| Lux (lx) | Foot-candle (fc) |
|---|---|
| 0.001 | 0.0000929031 |
| 0.01 | 0.000929031 |
| 0.1 | 0.00929031 |
| 1 | 0.0929031 |
| 5 | 0.464516 |
| 10 | 0.929031 |
| 50 | 4.64516 |
| 100 | 9.29031 |
| 500 | 46.4516 |
| 1000 | 92.9031 |
Formula
To execute this calculation, the value in Lux is first normalized to the base Illuminance unit (Lux) before being scaled to Foot-candle. The direct multiplier for Lux to Foot-candle is determined by the ratio of their scientific definitions.
Examples
For instance, 1 lx is strictly defined as roughly 0.09290312990644656 fc. If you are dealing with a larger scale, such as 50 lx, the resulting fc value maintains this exact linear proportionality.
Reverse Formula
The inverse conversion (Foot-candle back to Lux) 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 lx to fc calculations is the misapplication of unit prefixes (like centi- or milli-). Additionally, confusing Lux 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 Lux to Foot-candle 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 Lux being used in raw material procurement or Foot-candle being required for final product labeling, accurate data flow is essential for project interoperability.
Frequently Asked Questions
What is the exact ratio of Lux to Foot-candle?
One Lux is equal to 0.09290312990644656 Foot-candle.
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.