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How to Convert from Lumen/square meter [lm/m^2] to Lux [lx]?
Learn how to convert illumination units from lumen per square meter (lm/m^2) to lux (lx), two equivalent SI units measuring illuminance. Understand the usage, benefits, and simple conversion process between these units.
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Lumen/square meter [lm/m^2] to Lux [lx] Conversion Table
| Lumen/square meter [lm/m^2] | Lux [lx] |
|---|
Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Lumen/square meter [lm/m^2] | Lux [lx] |
|---|
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What Is This Tool?
This tool converts lumen per square meter (lm/m^2) to lux (lx), both SI derived units of illuminance. It helps quantify the amount of visible light falling on a surface, weighted by human photopic response, making them interchangeable for measuring light intensity.
How to Use This Tool?
- Enter the value you want to convert in lumen per square meter (lm/m^2).
- Select the input unit as lumen/square meter [lm/m^2].
- Choose the output unit as lux [lx].
- Click the convert button to get the equivalent lux value.
- Review the result which is the illuminance value in lux.
Key Features
- Converts lumen/square meter (lm/m^2) directly to lux (lx) using a 1:1 ratio.
- Designed for applications in lighting design, photography, horticulture, and photometric testing.
- Supports clear understanding of illuminance levels for compliance with lighting standards.
- Browser-based and easy to use without complex inputs.
- Provides practical examples of common conversions.
Examples
- 50 lumen/square meter equals 50 lux.
- 100 lumen/square meter converts directly to 100 lux.
Common Use Cases
- Specifying and verifying lighting levels in workspaces and classrooms.
- Measuring exposure in photography and cinematography.
- Controlling light delivered to plants in horticulture and greenhouses.
- Assessing indoor and outdoor illumination for standards compliance.
- Calibrating lamps, displays, and lux meters.
Tips & Best Practices
- Ensure uniform light distribution for accurate measurements.
- Use lux as the preferred unit where recognized lighting standards apply.
- Confirm that light spectral sensitivity matches human photopic response for precise evaluation.
- Apply calibration regularly when measuring illumination with instruments.
Limitations
- Conversion is straightforward since lumen/square meter and lux are equivalent units.
- Accuracy depends on consistent light distribution across surfaces.
- Measurements assume the spectral response aligns with human photopic vision.
Frequently Asked Questions
- Are lumen/square meter and lux different units?
- No, lumen per square meter (lm/m^2) and lux (lx) are equivalent SI derived units used to measure illuminance.
- Why convert lumen/square meter to lux?
- Converting facilitates compliance with lighting standards, as lux is the more commonly recognized unit for illuminance.
- Is there a complex formula to convert lm/m^2 to lx?
- No, the conversion is direct and one-to-one: 1 lumen per square meter equals 1 lux.
Key Terminology
- Lumen per square meter [lm/m^2]
- An SI derived unit of illuminance representing one lumen of luminous flux uniformly incident on a surface of one square meter.
- Lux [lx]
- An SI derived unit of illuminance equal to one lumen per square meter, measuring luminous flux per unit area weighted by human photopic response.
- Illuminance
- The measure of the amount of visible light falling on a surface per unit area.