Lumen per Square Foot Steradian to Kilocandela per Square Meter Conversion

Convert between Lumen per Square Foot Steradian and Kilocandela per Square Meter quickly and accurately.

lm/(ft²·sr)
kcd/m²

How to Convert Lumen per Square Foot Steradian to Kilocandela per Square Meter

Conversion Formula

1 lm/(ft²·sr) = 0.011 kcd/m²
1 kcd/m² = 92.903 lm/(ft²·sr)

Example

Convert 15 lm/(ft²·sr) to kcd/m²:

15 lm/(ft²·sr) = 15 × 0.011 kcd/m² = 0.161 kcd/m²

Unit Information

Learn about the luminance units you're converting between

Lumen per Square Foot Steradian

lm/(ft²·sr)

Definition

The Lumen per Square Foot Steradian is an imperial unit of luminance that shows the relationship between luminous flux, area, and solid angle using square feet. It is equivalent to 10.7639104167 candela per square meter.

History/Origin

This unit was developed for use in countries employing imperial measurements, providing a way to express luminance in terms of square feet while maintaining the relationship to luminous flux and solid angle. It bridges metric and imperial systems in lighting applications.

Current Use

Used in lighting design and engineering in countries using imperial units, particularly in architectural lighting and display specifications. Common in applications where square footage is the standard area measurement and precise luminance control is required.

Multiplier

10.764

Offset

0

Kilocandela per Square Meter

kcd/m²

Definition

The Kilocandela per Square Meter is a metric unit of luminance, equal to 1,000 candela per square meter. It provides a convenient way to express high luminance values without using very large numbers, making calculations and specifications more manageable.

History/Origin

This unit was introduced as a practical alternative to the base SI unit when dealing with high-luminance applications. The kilo- prefix makes it easier to work with bright light sources and high-intensity displays where the base unit would result in large numbers.

Current Use

Widely used in professional lighting, display technology, and photometry for measuring bright light sources. Common in LED displays, high-intensity lighting systems, and applications requiring precise control of very bright light output.

Multiplier

1000

Offset

0

Lumen per Square Foot Steradian to Kilocandela per Square Meter Conversion Table

Lumen per Square Foot Steradian [lm/(ft²·sr)] Kilocandela per Square Meter [kcd/m²]
1 lm/(ft²·sr) 0.010764 kcd/m²
10 lm/(ft²·sr) 0.107639 kcd/m²
25 lm/(ft²·sr) 0.269098 kcd/m²
50 lm/(ft²·sr) 0.538196 kcd/m²
100 lm/(ft²·sr) 1.076391 kcd/m²
0 lm/(ft²·sr) 0E+0 kcd/m²
-10 lm/(ft²·sr) -0.107639 kcd/m²
-40 lm/(ft²·sr) -0.430556 kcd/m²