500 lux converted to lumens depends on the area over which the lux is measured. Assuming the standard area of 1 square meter, 500 lux equals 500 lumens.
Lux measures illuminance, or light intensity per unit area, while lumens quantify total light output. Converting lux to lumens requires multiplying the lux value by the illuminated surface area in square meters.
Conversion Tool
Result in lumens:
Conversion Formula
The formula to convert lux to lumens is:
Lumens = Lux × Area (in square meters)
This works because lux measures the amount of light hitting a surface per square meter, while lumens measure total light output. If you know the lux level and the surface area illuminated, multiplying them gives total lumens.
For example, if you have 500 lux on 1 square meter:
- Lux = 500
- Area = 1 m²
- Lumens = 500 × 1 = 500 lumens
Conversion Example
- Example 1: 300 lux on 2 m²
- Multiply 300 lux by 2 m²
- 300 × 2 = 600 lumens
- Result: 600 lumens
- Example 2: 750 lux on 0.5 m²
- 750 × 0.5 = 375 lumens
- Output: 375 lumens
- Example 3: 1000 lux on 1.2 m²
- 1000 × 1.2 = 1200 lumens
- Lumens output: 1200
- Example 4: 450 lux on 3 m²
- 450 × 3 = 1350 lumens
- 1350 lumens total
- Example 5: 600 lux on 0.75 m²
- 600 × 0.75 = 450 lumens
- The conversion gives 450 lumens
Conversion Chart
| Lux | Lumens (for 1 m²) |
|---|---|
| 475.0 | 475.0 |
| 480.0 | 480.0 |
| 485.0 | 485.0 |
| 490.0 | 490.0 |
| 495.0 | 495.0 |
| 500.0 | 500.0 |
| 505.0 | 505.0 |
| 510.0 | 510.0 |
| 515.0 | 515.0 |
| 520.0 | 520.0 |
| 525.0 | 525.0 |
This chart shows lux values converted to lumens assuming the light hits exactly 1 square meter. To use the chart, find the lux value closest to yours, the lumens is the same number for 1 m². Change the area to get different lumens.
Related Conversion Questions
- How many lumens is 500 lux on a 2 square meter surface?
- Does 500 lux always equal 500 lumens?
- What area must I know to convert 500 lux to lumens?
- Can 500 lux be converted to lumens without area information?
- What is the difference between lux and lumens when measuring light?
- How does changing the surface area affect converting 500 lux to lumens?
- Why does 500 lux equal different lumens values on different surfaces?
Conversion Definitions
Lux: Lux is a unit that measures illuminance, meaning how much luminous flux falls onto a surface area. It quantifies light intensity per square meter, so higher lux means brighter light on that surface. It does not measure total light output, only light per unit area.
Lumens: Lumens measure the total amount of visible light emitted from a source. It shows the total light output without regard to area. More lumens means brighter light, but it doesn’t indicate how that light spreads or covers surfaces.
Conversion FAQs
Can I convert lux to lumens without knowing the area?
No, you can not accurately convert lux to lumens without knowing the surface area illuminated. Lux measures light per square meter, so without area, the total lumens cannot be calculated.
Why does a higher lux value not always mean more lumens?
Lux measures brightness on a specific area, but lumens measure total light output. A high lux on a very small area could be less total light than a lower lux spread over a large area.
Is it correct to assume 1 square meter when converting lux to lumens?
Only if you know the light hits exactly 1 m². If the area differs, the conversion changes. Assuming 1 m² can be inaccurate if the actual surface is larger or smaller.
How does distance affect lux and lumens?
Lux decreases as distance increases because the same lumens spread over a larger area. Lumens from a source stay constant, but lux changes with how far the surface is.
Are lux and lumens interchangeable units?
No, they measure different things. Lux measures intensity per area, lumens measure total light output. They relate through the area but can’t directly replace each other without it.