Conversion chart

Though these aren't perfect (at least I don't think they are)! It is a good starting place.

I couldn't quite decide where to put it, so mods feel free to move it if it fits somewhere else better.

Light Meters General Information


Light can be quantified in many ways, i.e., Lux, Lumens, Footcandles, candle power, candelas, and so on. The two most popular scales are Lux, which is the European measure, and Footcandles which is the U.S. scale.

Lux is a unit of illumination of one square meter which is one meter away from a uniform light source. 1 candela = 1 Lux.

Footcandles are a unit of illumination of one square foot which is one foot away from a uniform light source.

Light Measurement Conversion Factors
Abbreviations:
FC=Footcandle, Lux=Lux, Lumen=Lumen

Since: 1 FC=1 Lumen/square foot, and 1 Lux=1 Lumen/square meter

and;
1 square foot=0.0929 square meters

then;
1 Lux=0.0929 FC, and 1 FC=10.76 Lux

To convert from
into
multiply by

Lumens
Candela steradian
1.0

Lumens
Candle power (spherical)
0.07958

Lumens
Watts
0.0015

Lumens per square centimeter
Lamberts
1

Lumens per square centimeter
Lux
10000

Lumens per square centimeter
Phots
1

Lumens per square foot
Foot candles
1

Lumens per square foot
Foot lamberts
1

Lumens per square foot
Lumens /Square meter
10.76391

Lumens per square foot
Lux
10.76396

Lumens per square meter
Foot candles
0.0929

Lumens per square meter
Lumens/Square foot
0.0929

Lumens per square meter
Phots
0.0001

Lumens per square meter
Lux
1

Lux
Foot Candles
0.0929

Lux
Lumens/square meter
1

Lux
Phots
0.0001





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