fc to lx Conversion Calculator
Convert fc to lx quickly using our illuminance calculator. Ideal for lighting pros, photographers, and engineers needing precise lux measurements.
Foot-candle
Lux
How to convert fc to lx
Transform foot-candle measurements into lux in just a few clicks.
Input your foot-candle value
Type the illuminance number in foot-candles (fc) into the input field.
Apply the conversion factor
The tool multiplies your value by 10.7639, the exact SI conversion constant.
Read your lux result
The equivalent illuminance in lux (lx) displays immediately for practical use.
Why use this fc to lx Converter?
Eliminate manual math and get reliable illuminance conversions in seconds.
The Mathematical Formula
lx = fc × 10.7639. This constant converts imperial foot-candles into SI lux units.
Designed for Lighting Professionals
Engineers and architects can standardize measurements across international project specs.
Fast, Browser-Based Accuracy
Run precise calculations without installing software or referencing conversion charts.
Quick Reference
| Foot-candle | Lux |
|---|---|
| 1 fc | 10.7639 lx |
| 2 fc | 21.5278 lx |
| 5 fc | 53.8196 lx |
| 10 fc | 107.6391 lx |
| 20 fc | 215.2782 lx |
| 50 fc | 538.1955 lx |
Practical Examples of fc to lx
Real-world scenarios where this conversion is useful.
Office Lighting Design
A workspace standard of 50 fc equals roughly 538 lx for ergonomic compliance.
Photography Studio Setup
Key lights at 100 fc produce about 1076 lx, ideal for portrait illumination.
Greenhouse Cultivation
Plant growth lights at 200 fc translate to approximately 2153 lx of usable light.
Museum Exhibit Planning
Sensitive artifacts require 5 fc, which equals around 54 lx for safe display.
Frequently Asked Questions
Common queries regarding this specific conversion.
Q.What is the formula for converting fc to lx?
Multiply the foot-candle value by 10.7639 to get the equivalent lux measurement.
Q.How many lux equals one foot-candle?
One foot-candle equals exactly 10.7639 lux under standard measurement conditions.
Q.Why do the US and other regions use different units?
The US uses foot-candles based on imperial measurements, while most countries follow the SI lux standard.
Q.Is a foot-candle the same as a candela?
No. A foot-candle measures illuminance on a surface, while a candela measures luminous intensity from a source.
Discover Related Tools
Need to convert back? Use the reverse Lux to Foot-candle calculator. For other measurements, explore our complete suite of Illuminance Converters or the full Unit Converter Hub.