Luminous Exposure Converter
Result:
Supported units
Convert between lux-second (lx·s), lux-hour (lx·h), foot-candle-second (fc·s), phot-second, and SI-prefixed lux-second (mlx·s, klx·s). Exact relationships are used, including 1 lx·h = 3600 lx·s.
Popular pairs
- lx·s <-> lx·h
- lx·s <-> fc·s
- mlx·s <-> lx·s
How to use
Pick your from/to units using the search boxes, enter a value, and the result updates instantly. Use the copy button to grab the output.
Related converters
- Illuminance Converter (lux, foot-candle)
- Luminous Flux Converter (lumens)
- Luminous Energy Converter
Luminous Exposure Converter FAQ
Are the conversions exact?
Yes. Lux-second is defined as illuminance times time; we use exact relationships like 1 lx·h = 3600 lx·s and apply SI prefixes precisely.
Can I convert between lux-second and foot-candle-second?
Yes. Enter your value in lx·s and select fc·s as the target (or vice versa); results update instantly as you type.
Does this handle very small or very large luminous exposure?
Yes. You can convert down to mililux-second or up to kilolux-second with high precision using Decimal arithmetic.