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Light Converters
Luminous Intensity Converter
Result
... Hefner candle = ... Lumen per steradian
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Hefner candle to Lumen per steradian Converter
Use this page to convert hefner candle values into lumen per steradian, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 HK = 0.9 lm/sr
1 lm/sr = 1.11111111111111 HK
Example: 1 HK = 0.9 lm/sr
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Hefner candle
One Hefner candle is equal to 0.9 international candles.
History: The Hefner candle was a German standard based on an amyl acetate flame lamp.
Current use: Used in historical lighting references and old photometric standards.
Also written as HK.
Lumen per steradian
One lumen per steradian is equal to one international candle in this converter.
History: The candela is dimensionally equivalent to lumen per steradian.
Current use: Used in photometry, optics, lighting design, and luminous intensity calculations.
Also written as lm/sr.
Hefner candle to Lumen per steradian table
| Hefner candle [HK] | Lumen per steradian [lm/sr] |
|---|---|
| 0.01 HK | 0.009 lm/sr |
| 0.1 HK | 0.09 lm/sr |
| 1 HK | 0.9 lm/sr |
| 2 HK | 1.8 lm/sr |
| 5 HK | 4.5 lm/sr |
| 10 HK | 9 lm/sr |
| 20 HK | 18 lm/sr |
| 50 HK | 45 lm/sr |
| 100 HK | 90 lm/sr |
Frequently asked questions
How many Lumen per steradian (lm/sr) are in one Hefner candle (HK)?
One Hefner candle equals 0.9 Lumen per steradian.
How do you convert Hefner candle to Lumen per steradian?
Multiply the Hefner candle value by 0.9 to get the result in Lumen per steradian.
How do you convert Lumen per steradian back to Hefner candle?
Multiply the Lumen per steradian value by 1.11111111111111 to get back to Hefner candle.
What is 1 Hefner candle in Lumen per steradian?
1 Hefner candle equals 0.9 Lumen per steradian.