Flame to Lumen per Square Foot Conversion

Convert between Flame and Lumen per Square Foot quickly and accurately.

From Flame

flame

To Lumen per Square Foot

lm/ft²

How to Convert Flame to Lumen per Square Foot

Conversion Formula

1 flame = 4 lm/ft²

1 lm/ft² = 0.25 flame

Example

Convert 15 flame to lm/ft²:

15 flame = 15 × 4 lm/ft² = 60 lm/ft²

Unit Information

Learn about the illumination units you're converting between

Flame

flame

Definition

The Flame is a unit of illuminance equal to approximately 43.06 lux, representing the illuminance produced by a standard flame at a specific distance. It was used as a practical reference for measuring illumination levels in various lighting applications and historical photometric measurements.

History/Origin

Developed as a practical unit for measuring illumination based on the light output of a standard flame. It provided a convenient reference for lighting levels in everyday applications before the widespread adoption of standardized photometric units.

Current Use

Primarily of historical interest, though may still be referenced in older lighting literature or specialized applications. It provides insight into the evolution of illumination measurement and the practical approaches used in early photometry.

Multiplier

43.056

Offset

Lumen per Square Foot

lm/ft²

Definition

The Lumen per Square Foot is an imperial unit of illuminance equal to approximately 10.76 lux, representing the luminous flux per square foot. It is commonly used in countries employing the imperial system for lighting design and illuminance measurements.

History/Origin

Developed in countries using imperial units as a practical measure of illuminance. It provides a familiar reference for lighting professionals working with imperial measurements and is commonly used in architectural lighting and building design.

Current Use

Widely used in the United States and other imperial-system countries for lighting design, architectural applications, and general illuminance measurements. It provides a practical unit for lighting professionals and is commonly referenced in building codes and lighting standards.

Multiplier

10.764

Offset