apostilb to foot-lambert converter

Convert apostilb to foot-lambert in the Luminance family. See a sample calculation, unit definitions, and the interactive converter.

Example conversion: 1 asb

0.09290303999 foot-lambert

This example is calculated from the same unit registry used by the interactive converter.

Formula and unit definitions

Convert luminance in candela per area and legacy photometric units.

target value = source value × source factor ÷ target factor

Source unit: apostilb (asb), factor 0.3183098862, offset 0.

Target unit: foot-lambert (fL), factor 3.4262591, offset 0.

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Important note

The calculation is performed locally from the listed unit definitions. Display results are rounded for readability; high-precision and regulated work should use the governing standard and appropriate significant figures.

For high-precision, regulated or safety-critical use, check the underlying standard and its required precision. Historical and approximate units are identified in their names or family descriptions.

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