Illumination (Illuminance) Converter
Convert between different units of illuminance Convert between 12 different units instantly with our free online tool.
Formula: 1 lx × 0.001 = 0.001 klx
Available Illumination (Illuminance) Units
12 units supported for instant conversion
About Illumination (Illuminance) Conversion
Our free online illumination (illuminance) converter helps you quickly and accurately convert between 12 different units of illumination (illuminance). Whether you're a student, professional, or simply need everyday conversions, you get instant, precise results with the formula displayed.
Convert between different units of illuminance This converter supports both metric and imperial units, making it ideal for international use. All conversions use internationally recognized standards and formulas.
Did You Know?
The metric system (SI) is used by every country in the world for science and by most countries for everyday use. Only the United States, Liberia, and Myanmar primarily use non-metric units in daily life.
The International System of Units (SI) defines 7 base units: the second (time), metre (length), kilogram (mass), ampere (electric current), kelvin (temperature), mole (amount), and candela (luminous intensity). All other units are derived from these.
Unit conversion errors have caused real-world disasters: NASA lost the Mars Climate Orbiter in 1999 because one team used metric units and another used imperial units — a $327 million mistake.
Why Use Our Illumination (Illuminance) Converter?
Instant Results
Conversions update as you type — no button clicks needed.
High Precision
Uses internationally standardized conversion factors (SI & NIST).
12+ Units
Convert between 12 illumination (illuminance) units used around the world.
API & AI Ready
REST API and MCP server let apps and AI assistants convert programmatically.
Common Illumination (Illuminance) Conversion Table
Quick reference: Lux (lx) to other common units.
| Lux (lx) | Kilolux (klx) | Millilux (mlx) | Microlux (μlx) | Lumen per Square Meter (lm/m²) |
|---|---|---|---|---|
| 1 | 0.001 | 1,000 | 1,000,000 | 1 |
| 2 | 0.002 | 2,000 | 2,000,000 | 2 |
| 5 | 0.005 | 5,000 | 5,000,000 | 5 |
| 10 | 0.01 | 10,000 | 10,000,000 | 10 |
| 25 | 0.025 | 25,000 | 25,000,000 | 25 |
| 50 | 0.05 | 50,000 | 50,000,000 | 50 |
| 100 | 0.1 | 100,000 | 100,000,000 | 100 |
How to Use This Illumination (Illuminance) Converter
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