Elara Bennett300 lux is equal to 3000 lumens assuming the illuminated surface area is 10 square meters.
Lux measures illuminance or how much light falls on a surface, while lumens measure the total amount of visible light emitted by a source. To convert lux to lumens, multiply the lux value by the area in square meters over which the light spreads.
Conversion Tool
Result in lumens:
Conversion Formula
To convert lux to lumens, you need to multiply the lux value by the surface area in square meters over which the light is distributed. The formula is:
Lumens (lm) = Lux (lx) × Area (m²)
Lux measures the intensity of illumination on a surface, and lumens measures the total light output. Because lux is lumens per square meter, when you multiply lux by the area, you get lumens.
For example, if an area of 10 m² is uniformly lit at 300 lux, the total lumens is:
- Lux: 300 lx
- Area: 10 m²
- Lumens = 300 × 10 = 3000 lm
Conversion Example
- Example 1: 150 lux over 5 m²
- Multiply 150 by 5
- 150 × 5 = 750 lumens
- The surface emits 750 lumens in total.
- Example 2: 400 lux over 8 m²
- Calculate 400 × 8
- Result is 3200 lumens
- This means 3200 lumens light is shining on the 8 m² area.
- Example 3: 250 lux over 12 m²
- Multiply 250 by 12
- 250 × 12 = 3000 lumens
- The total light output is 3000 lumens.
- Example 4: 500 lux over 3 m²
- 500 × 3 = 1500 lumens
- The 3 square meter area is receiving 1500 lumens.
Conversion Chart
| Lux (lx) | Area (m²) | Lumens (lm) |
|---|---|---|
| 275.0 | 10 | 2750.0 |
| 280.0 | 10 | 2800.0 |
| 285.0 | 10 | 2850.0 |
| 290.0 | 10 | 2900.0 |
| 295.0 | 10 | 2950.0 |
| 300.0 | 10 | 3000.0 |
| 305.0 | 10 | 3050.0 |
| 310.0 | 10 | 3100.0 |
| 315.0 | 10 | 3150.0 |
| 320.0 | 10 | 3200.0 |
| 325.0 | 10 | 3250.0 |
This chart shows lux values from 275 to 325, assuming a surface area of 10 square meters. To find lumens, multiply the lux by 10. You can read across the rows to see how small changes in lux affect lumens output.
Related Conversion Questions
- How many lumens are in 300 lux on a 15 square meter surface?
- What is the lumen output if 300 lux lights a 5 m² area?
- Can I convert 300 lux directly to lumens without knowing the area?
- What does 300 lux mean in lumens for a 20 m² room?
- How to calculate lumens from 300 lux on different sized spaces?
- Is the lumen value always higher than lux for 300 lux reading?
- How does changing the area affect the lumens when lux is 300?
Conversion Definitions
Lux: Lux is the unit measuring illumination intensity over a surface. It quantifies how much visible light is spread on an area, equal to one lumen per square meter. Lux is useful for describing lighting conditions in environments like offices, streets, or homes, showing how bright a surface appears to the eye.
Lumens: Lumens measure the total quantity of visible light emitted by a source. It represents brightness perceived by human eyes, regardless of direction or spread. Higher lumens mean more light output. Lumens help compare lighting devices by their actual light production rather than power consumption.
Conversion FAQs
Why can’t I convert lux to lumens without knowing the surface area?
Lux is a measure of light intensity per unit area, so without the surface area, you don’t know how much total light (lumens) is being emitted. Lux tells you how bright the surface is, but lumens require knowing the size of that surface to find total light output.
Does the shape of the illuminated area affect lux to lumens conversion?
The formula uses area but not shape. However, uneven lighting or shapes causing shadows will affect lux values measured at points. For exact conversions, the area should be uniformly lit and measured carefully to avoid errors in lumens calculation.
How accurate is the lux to lumens conversion in practical use?
Accuracy depends on how precisely you measure the area and lux. Measuring devices have errors, and light distribution may not be uniform. In practice, the conversion gives an estimate; variations in reflectivity and environment can cause discrepancies.
Can I use lux to lumens conversion for outdoor lighting?
Yes, but outdoor lighting varies with distance, weather, and obstacles. Because lux decreases with distance, knowing both lux and illuminated area is crucial for converting to lumens. Outdoor surfaces might also have uneven illumination impacting calculations.
Is there a standard surface area used when converting lux to lumens?
No universal standard exists, because lumens depend on the actual surface area illuminated. You must specify or measure the area to convert lux to lumens accurately. Sometimes 1 square meter is used for simple conversions, but actual areas are needed for real-world use.
