Candelas to Lumens per Steradian Converter
Enter the luminous intensity in candelas below to convert it to lumens per steradian.
Convert Candelas to Lumens per Steradian
Enter a value in candelas (cd) to convert to lumens per steradian (lm/sr).
Candela to Lumen per Steradian Conversion Table
Table showing various candela measurements converted to lumens per steradian. Click any preset value or arrow to load it into the converter.
How to Convert Candelas to Lumens per Steradian
To convert candelas to lumens per steradian, multiply the luminous intensity by the following conversion ratio: 1 lumens per steradian/candela.
Since one candela is equal to 1 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 candelas multiplied by 1.
For example, here's how to convert 10 candelas to lumens per steradian using the formula above.
How Many Lumens per Steradian Are in a Candela?
There are 1 lumens per steradian in a candela, which is why we use this value in the formula above.
Our candela 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.
Candelas and lumens per steradian are both units used to measure luminous intensity. Keep reading to learn more about each unit.
What Is a Candela?
Fundamental SI base unit of luminous intensity. It serves as a primary reference unit for measuring luminous intensity across scientific and practical applications. [1]
The candela is classified as an International System of Units (SI) unit of luminous intensity. Candelas can be abbreviated as cd; for example, 1 candela can be written as 1 cd.
As the primary coherent reference unit for luminous intensity in this category, all other luminous intensity units are mathematically anchored to the candela (cd).
In practice, candelas (cd) are widely used across standard luminous intensity applications within International System of Units (SI) 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 candelas (cd) and lumens per steradian (lm/sr), keep full floating-point precision (1 cd = 1 lm/sr; 1 lm/sr = 1 cd) during intermediate calculations and round only the final lumen per steradian figure to match your instrument tolerance.
More Candela & Lumen per Steradian Conversions
Need to calculate in the opposite direction? Use our lumens per steradian to candelas converter (lm/sr to cd) to switch your starting unit immediately. You can also explore related tools such as converting candelas to millicandelas, converting candelas to kilocandelas, or converting millicandelas to candelas.
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Luminous Intensity Metrology Standard — Candelas (cd) to Lumens per Steradian (lm/sr)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Candela (cd) & Lumen per Steradian (lm/sr)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (cd to lm/sr)