Lumen per Square Foot to Lux Conversion
Convert between Lumen per Square Foot and Lux quickly and accurately.
How to Convert Lumen per Square Foot to Lux
Conversion Formula
Example
Convert 15 lm/ft² to lx:
Unit Information
Learn about the illumination units you're converting between
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
0
Lux
lx
Definition
The Lux is the SI derived unit of illuminance, representing the luminous flux per unit area. It measures the amount of light that falls on a surface, with one lux being equal to one lumen per square meter. This unit is fundamental in lighting design and photometry.
History/Origin
The lux was established as part of the International System of Units (SI) in 1960, derived from the candela and meter. It replaced earlier illumination units and provides a standardized way to measure light levels for various applications, from architectural lighting to scientific research.
Current Use
Widely used in lighting design, photography, workplace safety standards, and scientific research. It is essential for determining proper lighting levels in buildings, outdoor spaces, and industrial environments, ensuring adequate visibility and safety.
Multiplier
1
Offset
0
Lumen per Square Foot to Lux Conversion Table
| Lumen per Square Foot [lm/ft²] | Lux [lx] |
|---|---|
| 1 lm/ft² | 10.76391 lx |
| 10 lm/ft² | 107.639104 lx |
| 25 lm/ft² | 269.09776 lx |
| 50 lm/ft² | 538.195521 lx |
| 100 lm/ft² | 1076.391042 lx |
| 0 lm/ft² | 0E+0 lx |
| -10 lm/ft² | -107.639104 lx |
| -40 lm/ft² | -430.556417 lx |
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