Illumination Conversion
Value:
Popular Illumination Converters:
What is a Illumination Converter?
An illumination converter is a tool that converts between units of illuminance such as lux, foot-candle, meter-candle, and phot. It is used in lighting design, architecture, photography, and workplace safety to ensure proper light levels.
How to Convert Illumination Units
Select the illumination unit you want to convert from and the target unit using the dropdown menus. Enter your value in the input field and the converter instantly shows the equivalent illuminance. Useful for converting between lux and foot-candles in lighting specifications.
Illumination Conversion Formulas
History of Illumination Measurement
The lux (Latin for "light") is the SI unit of illuminance, equal to one lumen per square meter. The foot-candle, used in the US, was historically defined as illumination from a standard candle at one foot distance. The phot (10,000 lux) is a CGS unit from older scientific literature.
About This Illumination Converter
This illumination converter supports 11 units including lux, foot-candle, meter-candle, centimeter-candle, flame, nox, phot, lumen/m², lumen/cm², lumen/ft², and candela steradian/m². It covers SI, imperial, and CGS illuminance units.
Frequently Asked Questions
How do I convert lux to foot-candles?
Divide the lux value by 10.764 to get foot-candles. For example, 500 lux ÷ 10.764 = 46.5 foot-candles.
How do I convert foot-candles to lux?
Multiply the foot-candle value by 10.764 to get lux. For example, 50 fc × 10.764 = 538.2 lux.
What is the recommended lux level for an office?
Typical office lighting should be 300-500 lux (28-46 foot-candles). Detailed work like drafting may require 500-1000 lux. Corridors need only 100-150 lux.
What is the difference between lux and lumen?
Lumens measure total light output from a source. Lux measures how much light reaches a surface (lumens per square meter). A 1000-lumen bulb produces different lux levels depending on distance and room size.
Is lux the same as lumen per square meter?
Yes, 1 lux equals exactly 1 lumen per square meter. Lux is simply the special name given to this derived SI unit of illuminance.
Metric Conversion Factor Tables for Illumination Converter
| Units to convert | Multiply By The Number | Convert as Unit |
|---|---|---|
| Lux (lx) | 1 | Meter-candle (m*c) |
| Lux (lx) | 0.0001 | Centimeter-candle (cm*c) |
| Centimeter-candle (cm*c) | 10000 | Lux (lx) |
| Lux (lx) | 1 | Lumen/square meter (lm/m²) |
| Lux (lx) | 0.09290304 | Lumen/square foot (lm/ft²) |
| Lumen/square foot (lm/ft²) | 10.763910417 | Lux (lx) |
| Meter-candle (m*c) | 0.09290304 | Foot-candle (ft*c) |
| Foot-candle (ft*c) | 10.763910417 | Meter-candle (m*c) |
| Phot (ph) | 10000000 | Nox |
| Nox | 1e-7 | Phot (ph) |
Illuminationconverters & it's abbreviations
| Unit | Abbreviation | Unit | Abbreviation | Unit | Abbreviation |
|---|---|---|---|---|---|
| lux | lx | meter-candle | m*c | centimeter-candle | cm*c |
| foot-candle | ft*c, fc | flame | - | nox | - |
| candela steradian/sq. meter | - | lumen/square meter | lm/m² | lumen/square centimeter | lm/cm² |
| lumen/square foot | lm/ft² |
Complete list of Illumination conversion units and its conversion.
- 1 lux = 1 meter-candle
lux to meter candle → - 1 meter-candle = 1 lux
meter candle to lux → - 1 lux = 0.0001 centimeter-candle
lux to cm candle →
- 1 lux = 0.09290304 lumen/square foot
lux to lumen per sq ft → - 1 lumen/square foot = 10.763910417 lux
lumen per sq ft to lux → - 1 meter-candle = 0.0001 centimeter-candle
meter candle to cm candle →
- 1 phot = 10000000 nox
phot to nox → - 1 nox = 1.E-7 phot
nox to phot → - 1 candela steradian/sq. meter = 0.0001 lumen/square centimeter
lumen per sq m to lumen per sq cm →
- 1 centimeter-candle = 10000 lux
cm candle to lux → - 1 lux = 1 lumen/square meter
lux to lumen per sq m → - 1 lumen/square meter = 1 lux
lumen per sq m to lux →
- 1 centimeter-candle = 10000 meter-candle
cm candle to meter candle → - 1 meter-candle = 0.09290304 foot-candle
meter candle to ft candle → - 1 foot-candle = 10.763910417 meter-candle
ft candle to meter candle →
- 1 lumen/square centimeter = 10000 candela steradian/sq. meter
lumen per sq cm to lumen per sq m →