Illuminance Unit Converter Online
照度换算勒克斯英尺烛光灯光设计
Convert across 4 illuminance units: lux, kilolux, phot and foot-candle with exact factors — for lighting design, photography metering and office standards, fully local.
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How to Use
- Enter the value you want to convert
- Select the source unit and target unit
- Result appears instantly — reverse conversion supported
- Conversions use standard factors computed locally — works offline too
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FAQ
What is the office lighting standard?
Typical offices need 300-500 lx, detailed work 500-1000 lx; US sources use fc where 1 fc ≈ 10.76 lx.
How bright is outdoor sunlight?
Direct noon sun reaches ~100,000 lx (100 klx); overcast days about 1,000-10,000 lx — over 100x indoor levels.
Will my data be uploaded?
No, all conversions run locally in your browser.