Luminous Flux Converter
Result:
Supported units
Convert between lumens (lm), candela·steradian (lm/sr), lux·m², and SI-prefixed lumens (mlm, klm, Mlm). Exact relationships are used, including 1 cd = 1 lm/sr.
Popular pairs
- lm <-> cd·sr
- mlm <-> lm
- klm <-> lm
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
- Luminous Intensity Converter (candela)
- Illuminance Converter (lux, foot-candle)
- Luminous Exposure Converter
Luminous Flux Converter FAQ
Are the conversions exact?
Yes. Lumens relate to candela·steradian exactly (1 lm = 1 cd·sr) and SI prefixes are applied precisely.
Can I convert between mililumens and kilolumens?
Yes. Enter your value in mlm or klm and select the target; results update instantly as you type.
Does this handle very small or very large luminous flux?
Yes. You can convert down to mililumens or up to megalumens with high precision using Decimal arithmetic.