What does lumen per square meter per steradian measure?

It measures luminance, indicating how bright a surface appears per unit area and solid angle, commonly expressed in SI units.

Why should I convert lumen/sq. meter/steradian to lumen/square foot/steradian?

Converting allows you to work with luminance measurements in regions or applications that use U.S. customary units, ensuring compatibility and consistency.

Does this conversion account for surface reflectance or directional light differences?

No, the conversion assumes uniform luminance distribution and does not consider variations in reflectance or directionality.

How to Convert from Lumen/sq. meter/steradian to Lumen/square foot/steradian?

Convert luminance values from lumen per square meter per steradian to lumen per square foot per steradian with this easy-to-use unit converter designed for applications in lighting, display technology, and photometric measurements.

Lumen/sq. meter/steradian

Lumen/square foot/steradian

Please check your input. It must be a valid numeric value.

Lumen/sq. meter/steradian to Lumen/square foot/steradian Conversion Table

Lumen/sq. meter/steradian	Lumen/square foot/steradian

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Lumen/sq. meter/steradian to Lumen/square foot/steradian Conversion Table
Lumen/sq. meter/steradian	Lumen/square foot/steradian

Explore More Luminance Units Converter

What Is This Tool?

This online converter helps translate luminance measurements from lumen per square meter per steradian to lumen per square foot per steradian. It is designed for use in settings involving display brightness, lighting design, and photometric assessments where converting between metric and U.S. customary units of luminance is necessary.

How to Use This Tool?

Enter the luminance value in lumen per square meter per steradian
Select lumen/sq. meter/steradian as the input unit
Choose lumen/square foot/steradian as the output unit
Click the convert button to get the equivalent luminance in the target unit
Use the result for brightness specification, lighting design, or photometric calculations as needed

Key Features

Converts luminance units from lumen/sq. meter/steradian (SI) to lumen/square foot/steradian (non-SI)
Supports applications in display technology, lighting, signage, and photometric instrument calibration
Provides clear and consistent conversion for brightness specifications in different regional standards
Browser-based and easy to use without requiring downloads or installations
Includes example conversions to simplify understanding and application

Examples

5 lumen/sq. meter/steradian converts to approximately 0.4645152 lumen/square foot/steradian
10 lumen/sq. meter/steradian converts to approximately 0.9290304 lumen/square foot/steradian

Common Use Cases

Specifying display brightness for monitors, smartphones, and TVs using different unit systems
Evaluating lighting and signage design to control brightness and glare in both metric and customary units
Performing photometric instrument calibration and reporting results in preferred unit formats
Architectural lighting assessments involving glare control and visual comfort considerations
Outdoor advertising brightness control for signs and billboards measured in square feet

Tips & Best Practices

Verify the unit system required for your project before converting luminance values
Use this converter to maintain consistency when working across both metric and U.S. customary systems
Cross-check converted values to ensure they meet your brightness specifications and standards
Be mindful that the conversion assumes uniform luminance and may not capture surface reflection nuances
Apply rounding thoughtfully in precision-critical contexts to avoid cumulative errors

Limitations

The conversion assumes uniform luminance distribution and does not incorporate directional or surface reflectance variations
Differences between SI and non-SI units require careful handling to avoid inconsistencies in precise measurements
Rounding errors might occur in critical applications if conversions are not carefully managed

Frequently Asked Questions

What does lumen per square meter per steradian measure?: It measures luminance, indicating how bright a surface appears per unit area and solid angle, commonly expressed in SI units.
Why should I convert lumen/sq. meter/steradian to lumen/square foot/steradian?: Converting allows you to work with luminance measurements in regions or applications that use U.S. customary units, ensuring compatibility and consistency.
Does this conversion account for surface reflectance or directional light differences?: No, the conversion assumes uniform luminance distribution and does not consider variations in reflectance or directionality.

Key Terminology

Luminance: The luminous intensity emitted, reflected, or transmitted per unit area per unit solid angle, expressing how bright a surface appears.
Lumen/sq. meter/steradian: An SI unit of luminance measuring lumens per square meter per steradian, equivalent to candela per square meter.
Lumen/square foot/steradian: A non-SI unit of luminance measuring lumens per square foot per steradian, equivalent to candela per square foot.

Quick Knowledge Check

What does lumen per square meter per steradian quantify?

The area of a surface

The luminance or brightness per unit area and solid angle

The total luminous flux emitted without direction

Which unit system uses lumen per square foot per steradian?

Metric (SI) system

U.S. customary system

International System of Units

When converting luminance from lumen/sq. meter/steradian to lumen/square foot/steradian, what must you consider?

Surface reflectance variations

Differences between metric and non-metric units

Color temperature of the light

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