Convert Lux to Kilolux
Use this free converter to change lux (lx) into kilolux (klx). Lux and kilolux both measure illuminance. As a quick reference, 1 lx equals 0.001 klx, and 1 klx equals 1000 lx.
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Kilolux (klx)
0.001
1 lx = 0.001 klx
Illuminance conversion table
| Lux | Kilolux |
|---|---|
| 0.01 | 0.00001 |
| 0.1 | 0.0001 |
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1,000 | 1 |
How to convert Lux to Kilolux
Multiply the lux value by 0.001 to get kilolux.
- Enter the number of lux you want to convert.
- The converter instantly shows the equivalent value in kilolux.
- Worked example: 15 lx × 0.001 = 0.015 klx.
- Use the swap button to reverse the conversion (kilolux to lux).
About these units
Lux (lx)
- Definition
- The lux (lx) is the SI unit of illuminance, equal to one lumen per square meter — a measure of how much light falls on a surface.
- History
- It was adopted as an SI unit in 1960, derived from the lumen and the meter.
- Current use
- Lux is used in lighting design, photography, agriculture (grow-light intensity), and workplace health and safety standards.
Kilolux (klx)
- Definition
- A kilolux (klx) is 1,000 lux, representing bright indoor or outdoor lighting conditions.
- History
- It is a metric multiple of the lux used when values become large.
- Current use
- Direct sunlight reaches 100–130 klx; kilolux is used in horticultural and sports-facility lighting specs.
Frequently asked questions
How many kilolux are in a lux?
There are 0.001 klx in 1 lx. To convert, multiply the number of lux by 0.001.
How do I convert lux to kilolux?
Multiply the lux value by 0.001 to get kilolux. For example, 10 lx = 0.01 klx.
Is this lux-to-kilolux converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Lux to other illuminance units
| Unit | 1 Lux equals |
|---|---|
| Millilux (mlx) | 1000 mlx |
| Kilolux (klx) | 0.001 klx |
| Foot-candle (fc) | 0.09290304 fc |
| Phot (ph) | 0.0001 ph |
| Nox (nx) | 1000 nx |