The formula to calculate Lux (\(lx\)) from Lumens (\(lm\)) is:
\[ lx = \frac{lm}{A} \]
Where:
Lux (lx) is a measure of illuminance, the total amount of visible light illuminating a point on a surface. Lumens (lm) measure the total amount of visible light emitted by a source.
The area is the surface over which the light is spread, measured in square meters.
Let's assume the following values:
Using the formula:
\[ lx = \frac{1000}{10} \]
Evaluating:
\[ lx = 100 \]
The Lux is 100 lx.
| Lumens (lm) | Area (m²) | Lux (lx) |
|---|---|---|
| 100 | 1 | 100.0000 |
| 100 | 2 | 50.0000 |
| 100 | 3 | 33.3333 |
| 100 | 4 | 25.0000 |
| 100 | 5 | 20.0000 |
| 100 | 6 | 16.6667 |
| 100 | 7 | 14.2857 |
| 100 | 8 | 12.5000 |
| 100 | 9 | 11.1111 |
| 100 | 10 | 10.0000 |
| 200 | 1 | 200.0000 |
| 200 | 2 | 100.0000 |
| 200 | 3 | 66.6667 |
| 200 | 4 | 50.0000 |
| 200 | 5 | 40.0000 |
| 200 | 6 | 33.3333 |
| 200 | 7 | 28.5714 |
| 200 | 8 | 25.0000 |
| 200 | 9 | 22.2222 |
| 200 | 10 | 20.0000 |
| 300 | 1 | 300.0000 |
| 300 | 2 | 150.0000 |
| 300 | 3 | 100.0000 |
| 300 | 4 | 75.0000 |
| 300 | 5 | 60.0000 |
| 300 | 6 | 50.0000 |
| 300 | 7 | 42.8571 |
| 300 | 8 | 37.5000 |
| 300 | 9 | 33.3333 |
| 300 | 10 | 30.0000 |
| 400 | 1 | 400.0000 |
| 400 | 2 | 200.0000 |
| 400 | 3 | 133.3333 |
| 400 | 4 | 100.0000 |
| 400 | 5 | 80.0000 |
| 400 | 6 | 66.6667 |
| 400 | 7 | 57.1429 |
| 400 | 8 | 50.0000 |
| 400 | 9 | 44.4444 |
| 400 | 10 | 40.0000 |
| 500 | 1 | 500.0000 |
| 500 | 2 | 250.0000 |
| 500 | 3 | 166.6667 |
| 500 | 4 | 125.0000 |
| 500 | 5 | 100.0000 |
| 500 | 6 | 83.3333 |
| 500 | 7 | 71.4286 |
| 500 | 8 | 62.5000 |
| 500 | 9 | 55.5556 |
| 500 | 10 | 50.0000 |
| 600 | 1 | 600.0000 |
| 600 | 2 | 300.0000 |
| 600 | 3 | 200.0000 |
| 600 | 4 | 150.0000 |
| 600 | 5 | 120.0000 |
| 600 | 6 | 100.0000 |
| 600 | 7 | 85.7143 |
| 600 | 8 | 75.0000 |
| 600 | 9 | 66.6667 |
| 600 | 10 | 60.0000 |
| 700 | 1 | 700.0000 |
| 700 | 2 | 350.0000 |
| 700 | 3 | 233.3333 |
| 700 | 4 | 175.0000 |
| 700 | 5 | 140.0000 |
| 700 | 6 | 116.6667 |
| 700 | 7 | 100.0000 |
| 700 | 8 | 87.5000 |
| 700 | 9 | 77.7778 |
| 700 | 10 | 70.0000 |
| 800 | 1 | 800.0000 |
| 800 | 2 | 400.0000 |
| 800 | 3 | 266.6667 |
| 800 | 4 | 200.0000 |
| 800 | 5 | 160.0000 |
| 800 | 6 | 133.3333 |
| 800 | 7 | 114.2857 |
| 800 | 8 | 100.0000 |
| 800 | 9 | 88.8889 |
| 800 | 10 | 80.0000 |
| 900 | 1 | 900.0000 |
| 900 | 2 | 450.0000 |
| 900 | 3 | 300.0000 |
| 900 | 4 | 225.0000 |
| 900 | 5 | 180.0000 |
| 900 | 6 | 150.0000 |
| 900 | 7 | 128.5714 |
| 900 | 8 | 112.5000 |
| 900 | 9 | 100.0000 |
| 900 | 10 | 90.0000 |
| 1000 | 1 | 1,000.0000 |
| 1000 | 2 | 500.0000 |
| 1000 | 3 | 333.3333 |
| 1000 | 4 | 250.0000 |
| 1000 | 5 | 200.0000 |
| 1000 | 6 | 166.6667 |
| 1000 | 7 | 142.8571 |
| 1000 | 8 | 125.0000 |
| 1000 | 9 | 111.1111 |
| 1000 | 10 | 100.0000 |