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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All processing is done locally in your browser. No data is uploaded.
How to Use
- Paste any valid JSON, supports nesting, arrays and escapes
- Click Beautify to auto indent and format
- Click Minify to remove whitespace into one line
- All operations run locally for privacy
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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.