Apostilb to Candela per Square Foot Conversion

Convert between Apostilb and Candela per Square Foot quickly and accurately.

From Apostilb

asb

To Candela per Square Foot

cd/ft²

How to Convert Apostilb to Candela per Square Foot

Conversion Formula

1 asb = 0.03 cd/ft²

1 cd/ft² = 33.816 asb

Example

Convert 15 asb to cd/ft²:

15 asb = 15 × 0.03 cd/ft² = 0.444 cd/ft²

Unit Information

Learn about the luminance units you're converting between

Apostilb

asb

Definition

The Apostilb is a non-SI unit of luminance equal to 0.3183098862 candela per square meter. It is used in some specialized applications and provides an alternative way to express low luminance values in certain technical contexts.

History/Origin

This unit was developed as part of early photometric systems and is still used in some specialized applications. It provides a convenient way to express low luminance values and is occasionally found in technical specifications and measurement systems.

Current Use

Used in specialized photometric applications and certain technical contexts where traditional units are preferred. Occasionally found in older technical specifications and specialized measurement systems where non-SI units are still used.

Multiplier

0.318

Offset

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