Illuminance Converter
Convert between 7 illuminance units.
About Illuminance
Illuminance is how much light lands on a surface, in lux — one lumen per square metre. Lighting standards are written in it: around 100 lux in a corridor, 500 at a desk, 10,000 or more outdoors in daylight. The foot-candle is the imperial equivalent, and 1 fc is 10.764 lux — the same factor that converts square metres to square feet.
Conversion table — 1 unit in lux
| Unit | Lux |
|---|---|
| Lux | 1 |
| Kilolux | 1000 |
| Lumen/square meter | 1 |
| Lumen/square centimeter | 10000 |
| Phot | 10000 |
| Foot-candle | 10.7639 |
| Nox | 0.001 |
Illuminance conversions — frequently asked
- What is 1 Lux in kilolux?
- 1 Lux = 0.001 kilolux.
- What is 1 Lux in lumen/square meter?
- 1 Lux = 1 lumen/square meter.
- What is 1 Lux in lumen/square centimeter?
- 1 Lux = 0.0001 lumen/square centimeter.
- What is 1 Lux in phot?
- 1 Lux = 0.0001 phot.
- What is 1 Lux in foot-candle?
- 1 Lux = 0.092903 foot-candle.
- What is 1 Lux in nox?
- 1 Lux = 1000 nox.
Common conversions
Related converters
About Unit Converter
A unit converter changes a measurement from one unit to another. Pick a category — length, weight, temperature, data, area, speed, and 75+ more, including engineering and scientific units like pressure, torque, and viscosity — enter a value, and get an accurate conversion instantly. It runs in your browser with no sign-up and nothing to install.
Frequently asked questions
- How many unit categories are supported?
- Over 75, from everyday units (length, mass, temperature, volume, area, speed, data storage) to technical and scientific ones (energy, pressure, torque, viscosity, molar concentration, luminance, and more).
- Does it convert engineering and scientific units?
- Yes. Alongside common units it covers engineering and scientific categories — force, pressure, torque, thermal, flow, radiology, and CSS/typography units — with precise conversion factors.
- Are the conversions accurate?
- Yes. Conversions use standard factors and precise formulas, including non-linear ones like temperature, so results are exact.
- Do I need to install an app?
- No download needed — it's a free web app that runs in any modern browser on phone, tablet, or desktop, with nothing to install and nothing sent anywhere.
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