Candela per Square Meter to Apostilb Conversion

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

cd/m²
asb

How to Convert Candela per Square Meter to Apostilb

Conversion Formula

1 cd/m² = 3.142 asb
1 asb = 0.318 cd/m²

Example

Convert 15 cd/m² to asb:

15 cd/m² = 15 × 3.142 asb = 47.124 asb

Unit Information

Learn about the luminance units you're converting between

Candela per Square Meter

cd/m²

Definition

The Candela per Square Meter is the SI derived unit of luminance, representing the luminous intensity per unit area of light traveling in a given direction. It quantifies how much light is emitted or reflected from a surface area.

History/Origin

Derived from the SI base units of luminous intensity (candela) and area (square meter), this unit was established as part of the modern metric system. It provides a standardized way to measure surface brightness and is fundamental to photometry and lighting design.

Current Use

Widely used in lighting engineering, display technology, and photometry for measuring screen brightness, surface illumination, and light output. Essential for designing lighting systems, evaluating display performance, and ensuring proper illumination levels in various applications.

Multiplier

1

Offset

0

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

0

Candela per Square Meter to Apostilb Conversion Table

Candela per Square Meter [cd/m²] Apostilb [asb]
1 cd/m² 3.141593 asb
10 cd/m² 31.415927 asb
25 cd/m² 78.539816 asb
50 cd/m² 157.079633 asb
100 cd/m² 314.159265 asb
0 cd/m² 0E+0 asb
-10 cd/m² -31.415927 asb
-40 cd/m² -125.663706 asb