500 lux is equivalent to 5000 lumens when measured over an area of 10 square meters.
This conversion depends on the area illuminated, because lux measures illuminance (lumens per square meter), while lumens measure total light output. So, to find lumens from lux, you multiply the lux value by the surface area in square meters.
Conversion Tool
Result in lumens:
Conversion Formula
To convert lux (lx) to lumens (lm), you multiply the lux value by the area (in square meters) that the light covers. The formula is:
Lumens = Lux × Area (m²)
This works because lux measures how much luminous flux (lumens) falls on a given surface area. So by knowing the area, you can find total lumens emitted or received.
Example:
- Given: 500 lux over 10 m²
- Calculation: 500 lx × 10 m² = 5000 lumens
- Result: 500 lux corresponds to 5000 lumens on a 10 m² surface
Conversion Example
- Convert 300 lux over 5 m²:
- Multiply lux by area: 300 lx × 5 m²
- Result: 1500 lumens
- Convert 750 lux over 8 m²:
- Calculate 750 × 8 = 6000 lumens
- Convert 1000 lux over 12 m²:
- Multiply: 1000 × 12 = 12000 lumens
- Convert 400 lux over 7.5 m²:
- Calculation: 400 × 7.5 = 3000 lumens
- Convert 600 lux over 9 m²:
- Multiply 600 × 9 = 5400 lumens
Conversion Chart
Lux (lx) | Lumens (lm) for 10 m² area |
---|---|
475.0 | 4750.0 |
480.0 | 4800.0 |
485.0 | 4850.0 |
490.0 | 4900.0 |
495.0 | 4950.0 |
500.0 | 5000.0 |
505.0 | 5050.0 |
510.0 | 5100.0 |
515.0 | 5150.0 |
520.0 | 5200.0 |
525.0 | 5250.0 |
The chart shows how different lux values convert into lumens for a 10 square meter area. You can use it to quickly estimate lumens output if you know the lux and area.
Related Conversion Questions
- How many lumens are in 500 lux over a 15 square meter room?
- What is the lumen equivalent for 500 lux on a 20 m² surface?
- Can 500 lux be converted to lumens without knowing the area?
- How does area change the lumens value when converting from 500 lux?
- What is the formula to get lumens from 500 lux and a given area?
- If a light source produces 500 lux, how many lumens does it emit on a 5 m² desk?
- Does 500 lux always equal the same lumens regardless of space size?
Conversion Definitions
Lux: Lux is a unit for measuring illuminance, which describes how much light hits a surface per unit area. One lux equals one lumen per square meter. It tells how bright an area appears but does not measure total light output.
Lumens: Lumens measure luminous flux, or the total quantity of visible light emitted from a source. They quantify the amount of light perceived by the human eye, regardless of how it spreads over an area.
Conversion FAQs
Why do I need to know the area to convert lux to lumens?
Lux is the amount of light per square meter, so without knowing the surface size, you cannot find total lumens. Lumens represent total light output, which depends on how much area is illuminated. The area is the multiplier to get total lumens.
Can I convert lumens back to lux?
Yes, by dividing lumens by the area in square meters, you get lux. However, you must know the area illuminated because lux depends on how concentrated the light is over a surface.
What if the area is irregular or unknown?
If the area is not precisely known, lumens calculation becomes approximate or impossible. You need the exact or estimated surface area to convert lux correctly because the relationship is direct multiplication.
Is lux the same as lumens when area equals one square meter?
Yes, when the area is exactly 1 m², lux and lumens values are numerically equal, since lux = lumens / m². But this is specific to that area and does not apply for other sizes.
Does the angle of light affect lux to lumens conversion?
The conversion assumes uniform light distribution over the area. If light is directional or uneven, lux readings may vary across the surface, making lumens calculation approximate unless measured carefully.