Candela per Square Foot to Foot-Lambert Conversion

Convert between Candela per Square Foot and Foot-Lambert quickly and accurately.

cd/ft²
fL

How to Convert Candela per Square Foot to Foot-Lambert

Conversion Formula

1 cd/ft² = 3.142 fL
1 fL = 0.318 cd/ft²

Example

Convert 15 cd/ft² to fL:

15 cd/ft² = 15 × 3.142 fL = 47.124 fL

Unit Information

Learn about the luminance units you're converting between

Candela per Square Foot

cd/ft²

Definition

The Candela per Square Foot is an imperial unit of luminance, representing the luminous intensity per unit area using the square foot as the area unit. It is commonly used in countries that employ imperial measurement systems for lighting applications.

History/Origin

Developed as part of the imperial system of measurements, this unit provides a practical way to measure surface brightness in contexts where square feet are the standard area unit. It bridges the gap between metric and imperial systems in lighting applications.

Current Use

Used in lighting design and engineering in countries using imperial units, particularly in the United States. Common in architectural lighting, display specifications, and lighting calculations where square footage is the standard area measurement.

Multiplier

10.764

Offset

0

Foot-Lambert

fL

Definition

The Foot-Lambert is an imperial unit of luminance equal to 3.4262590996 candela per square meter. It is commonly used in display technology and lighting applications in countries that employ imperial measurement systems.

History/Origin

This unit was developed as an imperial equivalent to the lambert, using square feet as the area unit. It provides a practical way to measure luminance in contexts where imperial units are standard, particularly in display technology and lighting applications.

Current Use

Widely used in display technology, particularly in the United States, for specifying monitor brightness, television luminance, and other display characteristics. Common in consumer electronics specifications and lighting applications where imperial units are standard.

Multiplier

3.426

Offset

0

Candela per Square Foot to Foot-Lambert Conversion Table

Candela per Square Foot [cd/ft²] Foot-Lambert [fL]
1 cd/ft² 3.141593 fL
10 cd/ft² 31.415927 fL
25 cd/ft² 78.539816 fL
50 cd/ft² 157.079633 fL
100 cd/ft² 314.159265 fL
0 cd/ft² 0E+0 fL
-10 cd/ft² -31.415927 fL
-40 cd/ft² -125.663706 fL