Hefnerkerze to Lumens per Steradian Converter
Enter the luminous intensity in hefnerkerze below to convert it to lumens per steradian.
Convert Hefnerkerze to Lumens per Steradian
Enter a value in hefnerkerze (HK) to convert to lumens per steradian (lm/sr).
Hefnerkerze to Lumen per Steradian Conversion Table
Table showing various hefnerkerze measurements converted to lumens per steradian. Click any preset value or arrow to load it into the converter.
| Hefnerkerze (HK) | Lumens per Steradian (lm/sr) |
|---|---|
| 1 HK | 0.903 lm/sr |
| 2 HK | 1.806 lm/sr |
| 2.5 HK | 2.2575 lm/sr |
| 5 HK | 4.515 lm/sr |
| 10 HK | 9.03 lm/sr |
| 15 HK | 13.545 lm/sr |
| 20 HK | 18.06 lm/sr |
| 25 HK | 22.575 lm/sr |
| 30 HK | 27.09 lm/sr |
| 50 HK | 45.15 lm/sr |
How to Convert Hefnerkerze to Lumens per Steradian
To convert hefnerkerze to lumens per steradian, multiply the luminous intensity by the following conversion ratio: 0.903 lumens per steradian/hefnerkerze.
Since one hefnerkerze is equal to 0.903 lumens per steradian, you can use this simple formula to convert:
The luminous intensity in lumens per steradian is equal to the luminous intensity in hefnerkerze multiplied by 0.903.
For example, here's how to convert 5 hefnerkerze to lumens per steradian using the formula above.
How Many Lumens per Steradian Are in a Hefnerkerze?
There are 0.903 lumens per steradian in a hefnerkerze, which is why we use this value in the formula above.
Our hefnerkerze to lumen per steradian calculator automatically converts your luminous intensity measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Hefnerkerze and lumens per steradian are both units used to measure luminous intensity. Keep reading to learn more about each unit.
What Is a Hefnerkerze?
A hefnerkerze is a unit of luminous intensity equal to 0.903 candelas (cd), the base unit for luminous intensity. Historical German photometric candle standard (≈ 0.903 cd). [1]
The hefnerkerze is classified as a standard unit of luminous intensity. Hefnerkerze can be abbreviated as HK; for example, 1 hefnerkerze can be written as 1 HK.
When working with hefnerkerze (HK) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, hefnerkerze (HK) are widely used across standard luminous intensity applications within international standard workflows, engineering documentation, and technical data sheets.
What Is a Lumen per Steradian?
A lumen per steradian is a unit of luminous intensity equal to 1 candelas (cd), the base unit for luminous intensity. Exact SI definition of 1 candela (1 lm/sr = 1 cd). [2]
The lumen per steradian is classified as an International System of Units (SI) unit of luminous intensity. Lumens per Steradian can be abbreviated as lm/sr; for example, 1 lumen per steradian can be written as 1 lm/sr.
When working with lumens per steradian (lm/sr) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, lumens per steradian (lm/sr) are widely used across standard luminous intensity applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting luminous intensity between hefnerkerze (HK) and lumens per steradian (lm/sr), keep full floating-point precision (1 HK = 0.903 lm/sr; 1 lm/sr = 1.1074197 HK) during intermediate calculations and round only the final lumen per steradian figure to match your instrument tolerance.
More Hefnerkerze & Lumen per Steradian Conversions
Need to calculate in the opposite direction? Use our lumens per steradian to hefnerkerze calculator to switch your starting unit immediately. You can also explore related tools such as converting lumens per steradian to hefnerkerze, converting candelas to lumens per steradian, or converting candelas to millicandelas.
Convert from Hefnerkerze
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Luminous Intensity Metrology Standard — Hefnerkerze (HK) to Lumens per Steradian (lm/sr)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Hefnerkerze (HK) & Lumen per Steradian (lm/sr)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (HK to lm/sr)